23638764 has 24 divisors (see below), whose sum is σ = 55595008. Its totient is φ = 7817040.

The previous prime is 23638753. The next prime is 23638801. The reversal of 23638764 is 46783632.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6232 + ... + 9279.

Almost surely, 2^23638764 is an apocalyptic number.

It is an amenable number.

23638764 is an abundant number, since it is smaller than the sum of its proper divisors (31956244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23638764 is a wasteful number, since it uses less digits than its factorization.

23638764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15645 (or 15643 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 23638764 is about 4861.9712051801. The cubic root of 23638764 is about 286.9953905867.

The spelling of 23638764 in words is "twenty-three million, six hundred thirty-eight thousand, seven hundred sixty-four".