11724872 has 16 divisors (see below), whose sum is σ = 22399740. Its totient is φ = 5751616.

The previous prime is 11724863. The next prime is 11724887. The reversal of 11724872 is 27842711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11062276 + 662596 = 3326^2 + 814^2 .

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, 13403 + ... + 14250.

Almost surely, 2^11724872 is an apocalyptic number.

It is an amenable number.

11724872 is a deficient number, since it is larger than the sum of its proper divisors (10674868).

11724872 is a wasteful number, since it uses less digits than its factorization.

11724872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27712 (or 27708 counting only the distinct ones).

The product of its digits is 6272, while the sum is 32.

The square root of 11724872 is about 3424.1600429886. The cubic root of 11724872 is about 227.1796206841.

The spelling of 11724872 in words is "eleven million, seven hundred twenty-four thousand, eight hundred seventy-two".