85192218 has 12 divisors (see below), whose sum is σ = 184583178. Its totient is φ = 28397400.

The previous prime is 85192201. The next prime is 85192231. The reversal of 85192218 is 81229158.

It can be written as a sum of positive squares in only one way, i.e., 79869969 + 5322249 = 8937^2 + 2307^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2366433 + ... + 2366468.

Almost surely, 2^85192218 is an apocalyptic number.

85192218 is an abundant number, since it is smaller than the sum of its proper divisors (99390960).

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

85192218 is a wasteful number, since it uses less digits than its factorization.

85192218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732909 (or 4732906 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 85192218 is about 9229.9630551807. The cubic root of 85192218 is about 440.0141489940.

The spelling of 85192218 in words is "eighty-five million, one hundred ninety-two thousand, two hundred eighteen".