85275864 has 48 divisors (see below), whose sum is σ = 231444720. Its totient is φ = 28365120.

The previous prime is 85275821. The next prime is 85275871. The reversal of 85275864 is 46857258.

It is a Smith number, since the sum of its digits (45) 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 11 ways as a sum of consecutive naturals, for example, 44494 + ... + 46370.

It is an arithmetic number, because the mean of its divisors is an integer number (4821765).

Almost surely, 2^85275864 is an apocalyptic number.

It is an amenable number.

85275864 is an abundant number, since it is smaller than the sum of its proper divisors (146168856).

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

85275864 is a wasteful number, since it uses less digits than its factorization.

85275864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520 (or 2513 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 85275864 is about 9234.4931642186. The cubic root of 85275864 is about 440.1581112210.

The spelling of 85275864 in words is "eighty-five million, two hundred seventy-five thousand, eight hundred sixty-four".