11686081 has 8 divisors (see below), whose sum is σ = 12780000. Its totient is φ = 10597440.

The previous prime is 11686063. The next prime is 11686091. The reversal of 11686081 is 18068611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11686081 - 2⁵ = 11686049 is a prime.

It is a super-2 number, since 2×11686081² = 273128978277122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11686061) 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, 4425 + ... + 6553.

It is an arithmetic number, because the mean of its divisors is an integer number (1597500).

Almost surely, 2^11686081 is an apocalyptic number.

11686081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11686081 is a deficient number, since it is larger than the sum of its proper divisors (1093919).

11686081 is a wasteful number, since it uses less digits than its factorization.

11686081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 11686081 is about 3418.4910413807. The cubic root of 11686081 is about 226.9288073951.

The spelling of 11686081 in words is "eleven million, six hundred eighty-six thousand, eighty-one".