85707315 has 48 divisors (see below), whose sum is σ = 160812288. Its totient is φ = 43708896.

The previous prime is 85707311. The next prime is 85707317. The reversal of 85707315 is 51370758.

85707315 is a `hidden beast` number, since 8 + 570 + 73 + 15 = 666.

It is not a de Polignac number, because 85707315 - 2² = 85707311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85707315.

It is not an unprimeable number, because it can be changed into a prime (85707311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26412 + ... + 29478.

It is an arithmetic number, because the mean of its divisors is an integer number (3350256).

Almost surely, 2^85707315 is an apocalyptic number.

85707315 is a deficient number, since it is larger than the sum of its proper divisors (75104973).

85707315 is a wasteful number, since it uses less digits than its factorization.

85707315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110 (or 3098 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 85707315 is about 9257.8245284732. The cubic root of 85707315 is about 440.8991856182.

The spelling of 85707315 in words is "eighty-five million, seven hundred seven thousand, three hundred fifteen".