85772168 has 16 divisors (see below), whose sum is σ = 160995660. Its totient is φ = 42840000.

The previous prime is 85772147. The next prime is 85772173. The reversal of 85772168 is 86127758.

It can be written as a sum of positive squares in 2 ways, for example, as 85414564 + 357604 = 9242^2 + 598^2 .

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, 2918 + ... + 13418.

Almost surely, 2^85772168 is an apocalyptic number.

It is an amenable number.

85772168 is a deficient number, since it is larger than the sum of its proper divisors (75223492).

85772168 is a wasteful number, since it uses less digits than its factorization.

85772168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11528 (or 11524 counting only the distinct ones).

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

The square root of 85772168 is about 9261.3264708680. The cubic root of 85772168 is about 441.0103640936.

The spelling of 85772168 in words is "eighty-five million, seven hundred seventy-two thousand, one hundred sixty-eight".