85863872 has 28 divisors (see below), whose sum is σ = 180411120. Its totient is φ = 40406016.

The previous prime is 85863871. The next prime is 85863887. The reversal of 85863872 is 27836858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85863871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38372 + ... + 40547.

Almost surely, 2^85863872 is an apocalyptic number.

It is an amenable number.

85863872 is an abundant number, since it is smaller than the sum of its proper divisors (94547248).

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

85863872 is a wasteful number, since it uses less digits than its factorization.

85863872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78948 (or 78938 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 85863872 is about 9266.2760589139. The cubic root of 85863872 is about 441.1674780340.

The spelling of 85863872 in words is "eighty-five million, eight hundred sixty-three thousand, eight hundred seventy-two".