12815992 has 32 divisors (see below), whose sum is σ = 27688320. Its totient is φ = 5447520.

The previous prime is 12815969. The next prime is 12816017. The reversal of 12815992 is 29951821.

12815992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

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, 6463 + ... + 8209.

It is an arithmetic number, because the mean of its divisors is an integer number (865260).

Almost surely, 2^12815992 is an apocalyptic number.

It is an amenable number.

12815992 is an abundant number, since it is smaller than the sum of its proper divisors (14872328).

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

12815992 is a wasteful number, since it uses less digits than its factorization.

12815992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891 (or 1887 counting only the distinct ones).

The product of its digits is 12960, while the sum is 37.

The square root of 12815992 is about 3579.9430163063. The cubic root of 12815992 is about 234.0187970387.

The spelling of 12815992 in words is "twelve million, eight hundred fifteen thousand, nine hundred ninety-two".