47689597 has 4 divisors (see below), whose sum is σ = 47773980. Its totient is φ = 47605216.

The previous prime is 47689589. The next prime is 47689613. The reversal of 47689597 is 79598674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79598674 = 2 ⋅39799337.

It can be written as a sum of positive squares in 2 ways, for example, as 27520516 + 20169081 = 5246^2 + 4491^2 .

It is a cyclic number.

It is not a de Polignac number, because 47689597 - 2³ = 47689589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47689507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41338 + ... + 42475.

It is an arithmetic number, because the mean of its divisors is an integer number (11943495).

Almost surely, 2^47689597 is an apocalyptic number.

It is an amenable number.

47689597 is a deficient number, since it is larger than the sum of its proper divisors (84383).

47689597 is an equidigital number, since it uses as much as digits as its factorization.

47689597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84382.

The product of its digits is 3810240, while the sum is 55.

The square root of 47689597 is about 6905.7654897918. The cubic root of 47689597 is about 362.6390353707.

It can be divided in two parts, 4768 and 9597, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 47689597 in words is "forty-seven million, six hundred eighty-nine thousand, five hundred ninety-seven".