11720992 has 24 divisors (see below), whose sum is σ = 23232636. Its totient is φ = 5820672.

The previous prime is 11720981. The next prime is 11721013. The reversal of 11720992 is 29902711.

It can be written as a sum of positive squares in 2 ways, for example, as 11316496 + 404496 = 3364^2 + 636^2 .

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, 3858 + ... + 6190.

Almost surely, 2^11720992 is an apocalyptic number.

It is an amenable number.

11720992 is a deficient number, since it is larger than the sum of its proper divisors (11511644).

11720992 is a wasteful number, since it uses less digits than its factorization.

11720992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500 (or 2492 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 11720992 is about 3423.5934338061. The cubic root of 11720992 is about 227.1545584581.

The spelling of 11720992 in words is "eleven million, seven hundred twenty thousand, nine hundred ninety-two".