11667872 has 12 divisors (see below), whose sum is σ = 22971186. Its totient is φ = 5833920.

The previous prime is 11667869. The next prime is 11667883. The reversal of 11667872 is 27876611.

It can be written as a sum of positive squares in only one way, i.e., 11587216 + 80656 = 3404^2 + 284^2 .

It is a super-2 number, since 2×11667872² = 272278474016768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182279 + ... + 182342.

Almost surely, 2^11667872 is an apocalyptic number.

It is an amenable number.

11667872 is a deficient number, since it is larger than the sum of its proper divisors (11303314).

11667872 is an equidigital number, since it uses as much as digits as its factorization.

11667872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364631 (or 364623 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 11667872 is about 3415.8266934960. The cubic root of 11667872 is about 226.8108809286.

The spelling of 11667872 in words is "eleven million, six hundred sixty-seven thousand, eight hundred seventy-two".