47408369 has 2 divisors, whose sum is σ = 47408370. Its totient is φ = 47408368.

The previous prime is 47408323. The next prime is 47408411. The reversal of 47408369 is 96380474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24127744 + 23280625 = 4912^2 + 4825^2 .

It is a cyclic number.

It is not a de Polignac number, because 47408369 - 2²⁰ = 46359793 is a prime.

It is a super-2 number, since 2×47408369² = 4495106902480322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_2854769 and since 47408369 and 2854769 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47401369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23704184 + 23704185.

It is an arithmetic number, because the mean of its divisors is an integer number (23704185).

Almost surely, 2^47408369 is an apocalyptic number.

It is an amenable number.

47408369 is a deficient number, since it is larger than the sum of its proper divisors (1).

47408369 is an equidigital number, since it uses as much as digits as its factorization.

47408369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 47408369 is about 6885.3735555887. The cubic root of 47408369 is about 361.9247958914.

The spelling of 47408369 in words is "forty-seven million, four hundred eight thousand, three hundred sixty-nine".