85857875 has 8 divisors (see below), whose sum is σ = 107150784. Its totient is φ = 68686200.

The previous prime is 85857869. The next prime is 85857907. The reversal of 85857875 is 57875858.

It is a happy number.

It is not a de Polignac number, because 85857875 - 2⁴ = 85857859 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 343307 + ... + 343556.

It is an arithmetic number, because the mean of its divisors is an integer number (13393848).

Almost surely, 2^85857875 is an apocalyptic number.

85857875 is a deficient number, since it is larger than the sum of its proper divisors (21292909).

85857875 is an equidigital number, since it uses as much as digits as its factorization.

85857875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686878 (or 686868 counting only the distinct ones).

The product of its digits is 3136000, while the sum is 53.

The square root of 85857875 is about 9265.9524604867. The cubic root of 85857875 is about 441.1572069584.

The spelling of 85857875 in words is "eighty-five million, eight hundred fifty-seven thousand, eight hundred seventy-five".