85312272 has 20 divisors (see below), whose sum is σ = 220390160. Its totient is φ = 28437408.

The previous prime is 85312259. The next prime is 85312319. The reversal of 85312272 is 27221358.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888622 + ... + 888717.

It is an arithmetic number, because the mean of its divisors is an integer number (11019508).

Almost surely, 2^85312272 is an apocalyptic number.

It is an amenable number.

85312272 is an abundant number, since it is smaller than the sum of its proper divisors (135077888).

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

85312272 is a wasteful number, since it uses less digits than its factorization.

85312272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777350 (or 1777344 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 85312272 is about 9236.4642585786. The cubic root of 85312272 is about 440.2207432315.

The spelling of 85312272 in words is "eighty-five million, three hundred twelve thousand, two hundred seventy-two".