23996557 has 8 divisors (see below), whose sum is σ = 25938360. Its totient is φ = 22068480.

The previous prime is 23996527. The next prime is 23996591. The reversal of 23996557 is 75569932.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5900041 + 18096516 = 2429^2 + 4254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23996557 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 (23996527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369 + ... + 6937.

It is an arithmetic number, because the mean of its divisors is an integer number (3242295).

Almost surely, 2^23996557 is an apocalyptic number.

It is an amenable number.

23996557 is a deficient number, since it is larger than the sum of its proper divisors (1941803).

23996557 is a wasteful number, since it uses less digits than its factorization.

23996557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863.

The product of its digits is 510300, while the sum is 46.

The square root of 23996557 is about 4898.6280732466. The cubic root of 23996557 is about 288.4361198872.

The spelling of 23996557 in words is "twenty-three million, nine hundred ninety-six thousand, five hundred fifty-seven".