85657672 has 8 divisors (see below), whose sum is σ = 160608150. Its totient is φ = 42828832.

The previous prime is 85657667. The next prime is 85657687. The reversal of 85657672 is 27675658.

It can be written as a sum of positive squares in only one way, i.e., 43744996 + 41912676 = 6614^2 + 6474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5353597 + ... + 5353612.

Almost surely, 2^85657672 is an apocalyptic number.

It is an amenable number.

85657672 is a deficient number, since it is larger than the sum of its proper divisors (74950478).

85657672 is a wasteful number, since it uses less digits than its factorization.

85657672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10707215 (or 10707211 counting only the distinct ones).

The product of its digits is 705600, while the sum is 46.

The square root of 85657672 is about 9255.1430026769. The cubic root of 85657672 is about 440.8140439727.

The spelling of 85657672 in words is "eighty-five million, six hundred fifty-seven thousand, six hundred seventy-two".