11687992 has 16 divisors (see below), whose sum is σ = 22622400. Its totient is φ = 5655360.

The previous prime is 11687989. The next prime is 11688043. The reversal of 11687992 is 29978611.

It is a congruent number.

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, 23317 + ... + 23812.

It is an arithmetic number, because the mean of its divisors is an integer number (1413900).

Almost surely, 2^11687992 is an apocalyptic number.

It is an amenable number.

11687992 is a deficient number, since it is larger than the sum of its proper divisors (10934408).

11687992 is a wasteful number, since it uses less digits than its factorization.

11687992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47166 (or 47162 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 11687992 is about 3418.7705392436. The cubic root of 11687992 is about 226.9411764495.

The spelling of 11687992 in words is "eleven million, six hundred eighty-seven thousand, nine hundred ninety-two".