11636731 has 4 divisors (see below), whose sum is σ = 11743600. Its totient is φ = 11529864.

The previous prime is 11636699. The next prime is 11636741. The reversal of 11636731 is 13763611.

11636731 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11636731 - 2⁵ = 11636699 is a prime.

It is a super-2 number, since 2×11636731² = 270827016732722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11636731.

It is not an unprimeable number, because it can be changed into a prime (11636741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53271 + ... + 53488.

It is an arithmetic number, because the mean of its divisors is an integer number (2935900).

Almost surely, 2^11636731 is an apocalyptic number.

11636731 is a deficient number, since it is larger than the sum of its proper divisors (106869).

11636731 is a wasteful number, since it uses less digits than its factorization.

11636731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106868.

The product of its digits is 2268, while the sum is 28.

The square root of 11636731 is about 3411.2653077707. The cubic root of 11636731 is about 226.6089186317.

The spelling of 11636731 in words is "eleven million, six hundred thirty-six thousand, seven hundred thirty-one".