47894669 has 4 divisors (see below), whose sum is σ = 48798396. Its totient is φ = 46990944.

The previous prime is 47894657. The next prime is 47894681. The reversal of 47894669 is 96649874.

It is a happy number.

47894669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (47894657) and next prime (47894681).

It can be written as a sum of positive squares in 2 ways, for example, as 23639044 + 24255625 = 4862^2 + 4925^2 .

It is a cyclic number.

It is not a de Polignac number, because 47894669 - 2²⁴ = 31117453 is a prime.

It is a super-2 number, since 2×47894669² = 4587798637239122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 903673 = 47894669 / (4 + 7 + 8 + 9 + 4 + 6 + 6 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47894669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47894369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451784 + ... + 451889.

It is an arithmetic number, because the mean of its divisors is an integer number (12199599).

Almost surely, 2^47894669 is an apocalyptic number.

It is an amenable number.

47894669 is a deficient number, since it is larger than the sum of its proper divisors (903727).

47894669 is an equidigital number, since it uses as much as digits as its factorization.

47894669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903726.

The product of its digits is 2612736, while the sum is 53.

The square root of 47894669 is about 6920.5974453077. The cubic root of 47894669 is about 363.1580917582.

The spelling of 47894669 in words is "forty-seven million, eight hundred ninety-four thousand, six hundred sixty-nine".