12939633 has 12 divisors (see below), whose sum is σ = 21360768. Its totient is φ = 7394040.

The previous prime is 12939613. The next prime is 12939637. The reversal of 12939633 is 33693921.

It is a happy number.

12939633 is a `hidden beast` number, since 12 + 9 + 3 + 9 + 633 = 666.

12939633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12939633 - 2²² = 8745329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12939637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102633 + ... + 102758.

It is an arithmetic number, because the mean of its divisors is an integer number (1780064).

Almost surely, 2^12939633 is an apocalyptic number.

It is an amenable number.

12939633 is a deficient number, since it is larger than the sum of its proper divisors (8421135).

12939633 is a wasteful number, since it uses less digits than its factorization.

12939633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205404 (or 205401 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 12939633 is about 3597.1701377611. The cubic root of 12939633 is about 234.7689474919.

The spelling of 12939633 in words is "twelve million, nine hundred thirty-nine thousand, six hundred thirty-three".