11992 has 8 divisors (see below), whose sum is σ = 22500. Its totient is φ = 5992.

The previous prime is 11987. The next prime is 12007. The reversal of 11992 is 29911.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 742 + ... + 757.

2¹¹⁹⁹² is an apocalyptic number.

It is an amenable number.

11992 is a deficient number, since it is larger than the sum of its proper divisors (10508).

11992 is a wasteful number, since it uses less digits than its factorization.

11992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1501 counting only the distinct ones).

The product of its digits is 162, while the sum is 22.

The square root of 11992 is about 109.5079905760. The cubic root of 11992 is about 22.8891961012.

The spelling of 11992 in words is "eleven thousand, nine hundred ninety-two".