85865475 has 24 divisors (see below), whose sum is σ = 144990720. Its totient is φ = 44818720.

The previous prime is 85865431. The next prime is 85865477. The reversal of 85865475 is 57456858.

It is not a de Polignac number, because 85865475 - 2⁶ = 85865411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85865477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8655 + ... + 15704.

It is an arithmetic number, because the mean of its divisors is an integer number (6041280).

Almost surely, 2^85865475 is an apocalyptic number.

85865475 is a deficient number, since it is larger than the sum of its proper divisors (59125245).

85865475 is a wasteful number, since it uses less digits than its factorization.

85865475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24419 (or 24414 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 48.

The square root of 85865475 is about 9266.3625549619. The cubic root of 85865475 is about 441.1702234148.

The spelling of 85865475 in words is "eighty-five million, eight hundred sixty-five thousand, four hundred seventy-five".