12736668 has 36 divisors (see below), whose sum is σ = 34572552. Its totient is φ = 3638880.

The previous prime is 12736651. The next prime is 12736679. The reversal of 12736668 is 86663721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10243 + ... + 11418.

Almost surely, 2^12736668 is an apocalyptic number.

It is an amenable number.

12736668 is an abundant number, since it is smaller than the sum of its proper divisors (21835884).

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

12736668 is a wasteful number, since it uses less digits than its factorization.

12736668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21682 (or 21673 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 12736668 is about 3568.8468725906. The cubic root of 12736668 is about 233.5349812402.

The spelling of 12736668 in words is "twelve million, seven hundred thirty-six thousand, six hundred sixty-eight".