23457656 has 16 divisors (see below), whose sum is σ = 44255400. Its totient is φ = 11656224.

The previous prime is 23457613. The next prime is 23457659. The reversal of 23457656 is 65675432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23457659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7691 + ... + 10298.

Almost surely, 2^23457656 is an apocalyptic number.

It is an amenable number.

23457656 is a deficient number, since it is larger than the sum of its proper divisors (20797744).

23457656 is a wasteful number, since it uses less digits than its factorization.

23457656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18158 (or 18154 counting only the distinct ones).

The product of its digits is 151200, while the sum is 38.

The square root of 23457656 is about 4843.3104381198. The cubic root of 23457656 is about 286.2605739692.

It can be divided in two parts, 2345 and 7656, that added together give a palindrome (10001).

The spelling of 23457656 in words is "twenty-three million, four hundred fifty-seven thousand, six hundred fifty-six".