11667856 has 20 divisors (see below), whose sum is σ = 22927104. Its totient is φ = 5751200.

The previous prime is 11667833. The next prime is 11667863. The reversal of 11667856 is 65876611.

It is a super-2 number, since 2×11667856² = 272277727273472, which contains 22 as substring.

It is a congruent number.

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, 4000 + ... + 6271.

Almost surely, 2^11667856 is an apocalyptic number.

11667856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11667856 is a deficient number, since it is larger than the sum of its proper divisors (11259248).

11667856 is a wasteful number, since it uses less digits than its factorization.

11667856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10350 (or 10344 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 11667856 is about 3415.8243514560. The cubic root of 11667856 is about 226.8107772542.

The spelling of 11667856 in words is "eleven million, six hundred sixty-seven thousand, eight hundred fifty-six".