85672868 has 6 divisors (see below), whose sum is σ = 149927526. Its totient is φ = 42836432.

The previous prime is 85672841. The next prime is 85672901. The reversal of 85672868 is 86827658.

It can be written as a sum of positive squares in only one way, i.e., 83576164 + 2096704 = 9142^2 + 1448^2 .

It is a super-2 number, since 2×85672868² = 14679680622690848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10709105 + ... + 10709112.

It is an arithmetic number, because the mean of its divisors is an integer number (24987921).

Almost surely, 2^85672868 is an apocalyptic number.

It is an amenable number.

85672868 is a deficient number, since it is larger than the sum of its proper divisors (64254658).

85672868 is a wasteful number, since it uses less digits than its factorization.

85672868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21418221 (or 21418219 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 85672868 is about 9255.9639152278. The cubic root of 85672868 is about 440.8401097995.

The spelling of 85672868 in words is "eighty-five million, six hundred seventy-two thousand, eight hundred sixty-eight".