11640872 has 32 divisors (see below), whose sum is σ = 22874880. Its totient is φ = 5546880.

The previous prime is 11640857. The next prime is 11640883. The reversal of 11640872 is 27804611.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17783 + ... + 18425.

It is an arithmetic number, because the mean of its divisors is an integer number (714840).

Almost surely, 2^11640872 is an apocalyptic number.

It is an amenable number.

11640872 is a deficient number, since it is larger than the sum of its proper divisors (11234008).

11640872 is a wasteful number, since it uses less digits than its factorization.

11640872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 11640872 is about 3411.8722133163. The cubic root of 11640872 is about 226.6357954881.

The spelling of 11640872 in words is "eleven million, six hundred forty thousand, eight hundred seventy-two".