86031564 has 24 divisors (see below), whose sum is σ = 200890368. Its totient is φ = 28655760.

The previous prime is 86031559. The next prime is 86031587. The reversal of 86031564 is 46513068.

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, 29709 + ... + 32475.

It is an arithmetic number, because the mean of its divisors is an integer number (8370432).

Almost surely, 2^86031564 is an apocalyptic number.

It is an amenable number.

86031564 is an abundant number, since it is smaller than the sum of its proper divisors (114858804).

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

86031564 is a wasteful number, since it uses less digits than its factorization.

86031564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5365 (or 5363 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 86031564 is about 9275.3201561995. The cubic root of 86031564 is about 441.4544910547.

The spelling of 86031564 in words is "eighty-six million, thirty-one thousand, five hundred sixty-four".