12564976 has 10 divisors (see below), whose sum is σ = 24344672. Its totient is φ = 6282480.

The previous prime is 12564973. The next prime is 12564977. The reversal of 12564976 is 67946521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392640 + ... + 392671.

Almost surely, 2^12564976 is an apocalyptic number.

12564976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12564976 is a deficient number, since it is larger than the sum of its proper divisors (11779696).

12564976 is an equidigital number, since it uses as much as digits as its factorization.

12564976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785319 (or 785313 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 12564976 is about 3544.7109896295. The cubic root of 12564976 is about 232.4808694322.

The spelling of 12564976 in words is "twelve million, five hundred sixty-four thousand, nine hundred seventy-six".