85318224 has 80 divisors (see below), whose sum is σ = 232425600. Its totient is φ = 26915328.

The previous prime is 85318213. The next prime is 85318241. The reversal of 85318224 is 42281358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119982 + ... + 120690.

It is an arithmetic number, because the mean of its divisors is an integer number (2905320).

Almost surely, 2^85318224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85318224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116212800).

85318224 is an abundant number, since it is smaller than the sum of its proper divisors (147107376).

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

85318224 is a wasteful number, since it uses less digits than its factorization.

85318224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 846 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 85318224 is about 9236.7864541733. The cubic root of 85318224 is about 440.2309806525.

The spelling of 85318224 in words is "eighty-five million, three hundred eighteen thousand, two hundred twenty-four".