11623686 has 16 divisors (see below), whose sum is σ = 23478768. Its totient is φ = 3836000.

The previous prime is 11623681. The next prime is 11623691. The reversal of 11623686 is 68632611.

It is an interprime number because it is at equal distance from previous prime (11623681) and next prime (11623691).

It is a super-2 number, since 2×11623686² = 270220152453192, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11623681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8985 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (1467423).

Almost surely, 2^11623686 is an apocalyptic number.

11623686 is an abundant number, since it is smaller than the sum of its proper divisors (11855082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11623686 is a wasteful number, since it uses less digits than its factorization.

11623686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19287.

The product of its digits is 10368, while the sum is 33.

The square root of 11623686 is about 3409.3527244918. The cubic root of 11623686 is about 226.5242093133.

The spelling of 11623686 in words is "eleven million, six hundred twenty-three thousand, six hundred eighty-six".