12668872 has 16 divisors (see below), whose sum is σ = 23844060. Its totient is φ = 6310464.

The previous prime is 12668857. The next prime is 12668881. The reversal of 12668872 is 27886621.

It can be written as a sum of positive squares in 2 ways, for example, as 12432676 + 236196 = 3526^2 + 486^2 .

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 3 ways as a sum of consecutive naturals, for example, 643 + ... + 5074.

Almost surely, 2^12668872 is an apocalyptic number.

It is an amenable number.

12668872 is a deficient number, since it is larger than the sum of its proper divisors (11175188).

12668872 is a wasteful number, since it uses less digits than its factorization.

12668872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000 (or 5996 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 12668872 is about 3559.3358931126. The cubic root of 12668872 is about 233.1198828021.

The spelling of 12668872 in words is "twelve million, six hundred sixty-eight thousand, eight hundred seventy-two".