85312775 has 36 divisors (see below), whose sum is σ = 113035176. Its totient is φ = 63835200.

The previous prime is 85312753. The next prime is 85312807. The reversal of 85312775 is 57721358.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-85312775 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1273292 + ... + 1273358.

It is an arithmetic number, because the mean of its divisors is an integer number (3139866).

Almost surely, 2^85312775 is an apocalyptic number.

85312775 is a deficient number, since it is larger than the sum of its proper divisors (27722401).

85312775 is a wasteful number, since it uses less digits than its factorization.

85312775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 156 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 85312775 is about 9236.4914875725. The cubic root of 85312775 is about 440.2216084083.

The spelling of 85312775 in words is "eighty-five million, three hundred twelve thousand, seven hundred seventy-five".