85930816 has 14 divisors (see below), whose sum is σ = 170519090. Its totient is φ = 42965376.

The previous prime is 85930807. The next prime is 85930841. The reversal of 85930816 is 61803958.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68956416 + 16974400 = 8304^2 + 4120^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671271 + ... + 671398.

It is an arithmetic number, because the mean of its divisors is an integer number (12179935).

Almost surely, 2^85930816 is an apocalyptic number.

It is an amenable number.

85930816 is a deficient number, since it is larger than the sum of its proper divisors (84588274).

85930816 is a wasteful number, since it uses less digits than its factorization.

85930816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342681 (or 1342671 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 85930816 is about 9269.8875937090. The cubic root of 85930816 is about 441.2821007230.

The spelling of 85930816 in words is "eighty-five million, nine hundred thirty thousand, eight hundred sixteen".