12717992 has 32 divisors (see below), whose sum is σ = 28689600. Its totient is φ = 5163264.

The previous prime is 12717983. The next prime is 12718003. The reversal of 12717992 is 29971721.

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 Harshad number since it is a multiple of its sum of digits (38).

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, 4913 + ... + 7040.

It is an arithmetic number, because the mean of its divisors is an integer number (896550).

Almost surely, 2^12717992 is an apocalyptic number.

It is an amenable number.

12717992 is an abundant number, since it is smaller than the sum of its proper divisors (15971608).

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

12717992 is a wasteful number, since it uses less digits than its factorization.

12717992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11985 (or 11981 counting only the distinct ones).

The product of its digits is 15876, while the sum is 38.

The square root of 12717992 is about 3566.2293812934. The cubic root of 12717992 is about 233.4207799219.

The spelling of 12717992 in words is "twelve million, seven hundred seventeen thousand, nine hundred ninety-two".