12563976 has 32 divisors (see below), whose sum is σ = 31520160. Its totient is φ = 4173312.

The previous prime is 12563963. The next prime is 12563977. The reversal of 12563976 is 67936521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12563977) by changing a digit.

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, 7731 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (985005).

Almost surely, 2^12563976 is an apocalyptic number.

It is an amenable number.

12563976 is an abundant number, since it is smaller than the sum of its proper divisors (18956184).

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

12563976 is a wasteful number, since it uses less digits than its factorization.

12563976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845 (or 1841 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 12563976 is about 3544.5699315996. The cubic root of 12563976 is about 232.4747018376.

The spelling of 12563976 in words is "twelve million, five hundred sixty-three thousand, nine hundred seventy-six".