85163856 has 20 divisors (see below), whose sum is σ = 220006752. Its totient is φ = 28387936.

The previous prime is 85163809. The next prime is 85163867. The reversal of 85163856 is 65836158.

It is a congruent number.

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, 887076 + ... + 887171.

Almost surely, 2^85163856 is an apocalyptic number.

It is an amenable number.

85163856 is an abundant number, since it is smaller than the sum of its proper divisors (134842896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85163856 is a wasteful number, since it uses less digits than its factorization.

85163856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774258 (or 1774252 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 85163856 is about 9228.4265181016. The cubic root of 85163856 is about 439.9653140701.

The spelling of 85163856 in words is "eighty-five million, one hundred sixty-three thousand, eight hundred fifty-six".