36631986 has 16 divisors (see below), whose sum is σ = 73329024. Its totient is φ = 12199824.

The previous prime is 36631949. The next prime is 36631997. The reversal of 36631986 is 68913663.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7671 + ... + 11493.

It is an arithmetic number, because the mean of its divisors is an integer number (4583064).

Almost surely, 2^36631986 is an apocalyptic number.

36631986 is an abundant number, since it is smaller than the sum of its proper divisors (36697038).

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

36631986 is a wasteful number, since it uses less digits than its factorization.

36631986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425.

The product of its digits is 139968, while the sum is 42.

The square root of 36631986 is about 6052.4363689344. The cubic root of 36631986 is about 332.1137233188.

The spelling of 36631986 in words is "thirty-six million, six hundred thirty-one thousand, nine hundred eighty-six".