12564936 has 32 divisors (see below), whose sum is σ = 34903200. Its totient is φ = 4188240.

The previous prime is 12564919. The next prime is 12564961. The reversal of 12564936 is 63946521.

It is a happy number.

12564936 is a `hidden beast` number, since 1 + 2 + 5 + 649 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12564936.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28870 + ... + 29301.

It is an arithmetic number, because the mean of its divisors is an integer number (1090725).

Almost surely, 2^12564936 is an apocalyptic number.

It is an amenable number.

12564936 is an abundant number, since it is smaller than the sum of its proper divisors (22338264).

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

12564936 is a wasteful number, since it uses less digits than its factorization.

12564936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58186 (or 58176 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 12564936 is about 3544.7053474161. The cubic root of 12564936 is about 232.4806227347.

The spelling of 12564936 in words is "twelve million, five hundred sixty-four thousand, nine hundred thirty-six".