85391024 has 20 divisors (see below), whose sum is σ = 165621840. Its totient is φ = 42649920.

The previous prime is 85391023. The next prime is 85391027. The reversal of 85391024 is 42019358.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (85391023) 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, 16637 + ... + 21155.

It is an arithmetic number, because the mean of its divisors is an integer number (8281092).

Almost surely, 2^85391024 is an apocalyptic number.

It is an amenable number.

85391024 is a deficient number, since it is larger than the sum of its proper divisors (80230816).

85391024 is a wasteful number, since it uses less digits than its factorization.

85391024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5708 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 85391024 is about 9240.7263783752. The cubic root of 85391024 is about 440.3561579113.

The spelling of 85391024 in words is "eighty-five million, three hundred ninety-one thousand, twenty-four".