12938636 has 12 divisors (see below), whose sum is σ = 22876728. Its totient is φ = 6402432.

The previous prime is 12938623. The next prime is 12938663. The reversal of 12938636 is 63683921.

12938636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12938636.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16286 + ... + 17061.

It is an arithmetic number, because the mean of its divisors is an integer number (1906394).

Almost surely, 2^12938636 is an apocalyptic number.

It is an amenable number.

12938636 is a deficient number, since it is larger than the sum of its proper divisors (9938092).

12938636 is a wasteful number, since it uses less digits than its factorization.

12938636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33448 (or 33446 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 12938636 is about 3597.0315539344. The cubic root of 12938636 is about 234.7629176802.

The spelling of 12938636 in words is "twelve million, nine hundred thirty-eight thousand, six hundred thirty-six".