85710915 has 12 divisors (see below), whose sum is σ = 148565664. Its totient is φ = 45712464.

The previous prime is 85710883. The next prime is 85710929. The reversal of 85710915 is 51901758.

It is not a de Polignac number, because 85710915 - 2⁵ = 85710883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85710915.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952299 + ... + 952388.

It is an arithmetic number, because the mean of its divisors is an integer number (12380472).

Almost surely, 2^85710915 is an apocalyptic number.

85710915 is a deficient number, since it is larger than the sum of its proper divisors (62854749).

85710915 is a wasteful number, since it uses less digits than its factorization.

85710915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904698 (or 1904695 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The square root of 85710915 is about 9258.0189565587. The cubic root of 85710915 is about 440.9053586224.

The spelling of 85710915 in words is "eighty-five million, seven hundred ten thousand, nine hundred fifteen".