11992972 has 6 divisors (see below), whose sum is σ = 20987708. Its totient is φ = 5996484.

The previous prime is 11992969. The next prime is 11992987. The reversal of 11992972 is 27929911.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1499118 + ... + 1499125.

Almost surely, 2^11992972 is an apocalyptic number.

It is an amenable number.

11992972 is a deficient number, since it is larger than the sum of its proper divisors (8994736).

11992972 is a wasteful number, since it uses less digits than its factorization.

11992972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998247 (or 2998245 counting only the distinct ones).

The product of its digits is 20412, while the sum is 40.

The square root of 11992972 is about 3463.0870621456. The cubic root of 11992972 is about 228.8981450508.

The spelling of 11992972 in words is "eleven million, nine hundred ninety-two thousand, nine hundred seventy-two".