85715970 has 16 divisors (see below), whose sum is σ = 205718400. Its totient is φ = 22857584.

The previous prime is 85715969. The next prime is 85716017. The reversal of 85715970 is 7951758.

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, 1428570 + ... + 1428629.

It is an arithmetic number, because the mean of its divisors is an integer number (12857400).

Almost surely, 2^85715970 is an apocalyptic number.

85715970 is an abundant number, since it is smaller than the sum of its proper divisors (120002430).

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

85715970 is a wasteful number, since it uses less digits than its factorization.

85715970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857209.

The product of its (nonzero) digits is 88200, while the sum is 42.

The square root of 85715970 is about 9258.2919591035. The cubic root of 85715970 is about 440.9140262574.

It can be divided in two parts, 8571 and 5970, that added together give a palindrome (14541).

The spelling of 85715970 in words is "eighty-five million, seven hundred fifteen thousand, nine hundred seventy".