86631064 has 32 divisors (see below), whose sum is σ = 182538720. Its totient is φ = 38244096.

The previous prime is 86631053. The next prime is 86631079. The reversal of 86631064 is 46013668.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 15717 + ... + 20500.

It is an arithmetic number, because the mean of its divisors is an integer number (5704335).

Almost surely, 2^86631064 is an apocalyptic number.

It is an amenable number.

86631064 is an abundant number, since it is smaller than the sum of its proper divisors (95907656).

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

86631064 is a wasteful number, since it uses less digits than its factorization.

86631064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36259 (or 36255 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 86631064 is about 9307.5809961558. The cubic root of 86631064 is about 442.4775248993.

The spelling of 86631064 in words is "eighty-six million, six hundred thirty-one thousand, sixty-four".