12978876 has 36 divisors (see below), whose sum is σ = 30848552. Its totient is φ = 4246944.

The previous prime is 12978859. The next prime is 12978883. The reversal of 12978876 is 67887921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82590 + ... + 82746.

Almost surely, 2^12978876 is an apocalyptic number.

It is an amenable number.

12978876 is an abundant number, since it is smaller than the sum of its proper divisors (17869676).

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

12978876 is a wasteful number, since it uses less digits than its factorization.

12978876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 245 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The square root of 12978876 is about 3602.6207127590. The cubic root of 12978876 is about 235.0060417943.

The spelling of 12978876 in words is "twelve million, nine hundred seventy-eight thousand, eight hundred seventy-six".