36331686 has 64 divisors (see below), whose sum is σ = 90028800. Its totient is φ = 10793088.

The previous prime is 36331637. The next prime is 36331709. The reversal of 36331686 is 68613363.

36331686 is a `hidden beast` number, since 3 + 633 + 16 + 8 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36331686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16401 + ... + 18483.

It is an arithmetic number, because the mean of its divisors is an integer number (1406700).

Almost surely, 2^36331686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36331686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45014400).

36331686 is an abundant number, since it is smaller than the sum of its proper divisors (53697114).

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

36331686 is a wasteful number, since it uses less digits than its factorization.

36331686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130 (or 2124 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 36331686 is about 6027.5771251806. The cubic root of 36331686 is about 331.2037032247.

The spelling of 36331686 in words is "thirty-six million, three hundred thirty-one thousand, six hundred eighty-six".