85847872 has 56 divisors (see below), whose sum is σ = 187086240. Its totient is φ = 38760960.

The previous prime is 85847857. The next prime is 85847893. The reversal of 85847872 is 27874858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138379 + ... + 138997.

Almost surely, 2^85847872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85847872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93543120).

85847872 is an abundant number, since it is smaller than the sum of its proper divisors (101238368).

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

85847872 is a wasteful number, since it uses less digits than its factorization.

85847872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 829 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 49.

The square root of 85847872 is about 9265.4126729466. The cubic root of 85847872 is about 441.1400737332.

The spelling of 85847872 in words is "eighty-five million, eight hundred forty-seven thousand, eight hundred seventy-two".