11686690 has 16 divisors (see below), whose sum is σ = 21715200. Its totient is φ = 4523760.

The previous prime is 11686687. The next prime is 11686693. The reversal of 11686690 is 9668611.

It is an interprime number because it is at equal distance from previous prime (11686687) and next prime (11686693).

It is a super-2 number, since 2×11686690² = 273157446312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11686693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18540 + ... + 19159.

It is an arithmetic number, because the mean of its divisors is an integer number (1357200).

Almost surely, 2^11686690 is an apocalyptic number.

11686690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11686690 is a deficient number, since it is larger than the sum of its proper divisors (10028510).

11686690 is a wasteful number, since it uses less digits than its factorization.

11686690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37737.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 11686690 is about 3418.5801146090. The cubic root of 11686690 is about 226.9327493281.

The spelling of 11686690 in words is "eleven million, six hundred eighty-six thousand, six hundred ninety".