85618772 has 12 divisors (see below), whose sum is σ = 153021120. Its totient is φ = 41898456.

The previous prime is 85618747. The next prime is 85618781. The reversal of 85618772 is 27781658.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227522 + ... + 227897.

It is an arithmetic number, because the mean of its divisors is an integer number (12751760).

Almost surely, 2^85618772 is an apocalyptic number.

It is an amenable number.

85618772 is a deficient number, since it is larger than the sum of its proper divisors (67402348).

85618772 is a wasteful number, since it uses less digits than its factorization.

85618772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455470 (or 455468 counting only the distinct ones).

The product of its digits is 188160, while the sum is 44.

The square root of 85618772 is about 9253.0412297795. The cubic root of 85618772 is about 440.7473044255.

The spelling of 85618772 in words is "eighty-five million, six hundred eighteen thousand, seven hundred seventy-two".