85868580 has 72 divisors (see below), whose sum is σ = 279695808. Its totient is φ = 19626432.

The previous prime is 85868579. The next prime is 85868597. The reversal of 85868580 is 8586858.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11664 + ... + 17543.

It is an arithmetic number, because the mean of its divisors is an integer number (3884664).

Almost surely, 2^85868580 is an apocalyptic number.

It is an amenable number.

85868580 is an abundant number, since it is smaller than the sum of its proper divisors (193827228).

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

85868580 is a wasteful number, since it uses less digits than its factorization.

85868580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29233 (or 29224 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 48.

The square root of 85868580 is about 9266.5300949169. The cubic root of 85868580 is about 441.1755411013.

The spelling of 85868580 in words is "eighty-five million, eight hundred sixty-eight thousand, five hundred eighty".