12813788 has 24 divisors (see below), whose sum is σ = 24931200. Its totient is φ = 5722560.

The previous prime is 12813761. The next prime is 12813791. The reversal of 12813788 is 88731821.

12813788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2363 + ... + 5586.

It is an arithmetic number, because the mean of its divisors is an integer number (1038800).

Almost surely, 2^12813788 is an apocalyptic number.

It is an amenable number.

12813788 is a deficient number, since it is larger than the sum of its proper divisors (12117412).

12813788 is a wasteful number, since it uses less digits than its factorization.

12813788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997 (or 7995 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 12813788 is about 3579.6351769419. The cubic root of 12813788 is about 234.0053813261.

The spelling of 12813788 in words is "twelve million, eight hundred thirteen thousand, seven hundred eighty-eight".