85317975 has 24 divisors (see below), whose sum is σ = 156733520. Its totient is φ = 45502560.

The previous prime is 85317937. The next prime is 85317979. The reversal of 85317975 is 57971358.

It is not a de Polignac number, because 85317975 - 2¹¹ = 85315927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 85317975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85317979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62524 + ... + 63873.

Almost surely, 2^85317975 is an apocalyptic number.

85317975 is a deficient number, since it is larger than the sum of its proper divisors (71415545).

85317975 is a wasteful number, since it uses less digits than its factorization.

85317975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126416 (or 126405 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 85317975 is about 9236.7729754498. The cubic root of 85317975 is about 440.2305523828.

The spelling of 85317975 in words is "eighty-five million, three hundred seventeen thousand, nine hundred seventy-five".