11686231 has 4 divisors (see below), whose sum is σ = 12194352. Its totient is φ = 11178112.

The previous prime is 11686229. The next prime is 11686243. The reversal of 11686231 is 13268611.

11686231 is digitally balanced in base 2, 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 11686231 - 2¹ = 11686229 is a prime.

It is a super-2 number, since 2×11686231² = 273135989970722, 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 11686231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11686201) 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, 254026 + ... + 254071.

It is an arithmetic number, because the mean of its divisors is an integer number (3048588).

Almost surely, 2^11686231 is an apocalyptic number.

11686231 is a deficient number, since it is larger than the sum of its proper divisors (508121).

11686231 is an equidigital number, since it uses as much as digits as its factorization.

11686231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508120.

The product of its digits is 1728, while the sum is 28.

The square root of 11686231 is about 3418.5129808149. The cubic root of 11686231 is about 226.9297783273.

The spelling of 11686231 in words is "eleven million, six hundred eighty-six thousand, two hundred thirty-one".