85365642 has 16 divisors (see below), whose sum is σ = 171037152. Its totient is φ = 28404240.

The previous prime is 85365641. The next prime is 85365701. The reversal of 85365642 is 24656358.

It is a self number, because there is not a number n which added to its sum of digits gives 85365642.

It is not an unprimeable number, because it can be changed into a prime (85365641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9033 + ... + 15884.

It is an arithmetic number, because the mean of its divisors is an integer number (10689822).

Almost surely, 2^85365642 is an apocalyptic number.

85365642 is an abundant number, since it is smaller than the sum of its proper divisors (85671510).

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

85365642 is a wasteful number, since it uses less digits than its factorization.

85365642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25493.

The product of its digits is 172800, while the sum is 39.

The square root of 85365642 is about 9239.3528994189. The cubic root of 85365642 is about 440.3125224599.

The spelling of 85365642 in words is "eighty-five million, three hundred sixty-five thousand, six hundred forty-two".