85664722 has 16 divisors (see below), whose sum is σ = 150962112. Its totient is φ = 35943120.

The previous prime is 85664713. The next prime is 85664767. The reversal of 85664722 is 22746658.

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, 149478 + ... + 150049.

It is an arithmetic number, because the mean of its divisors is an integer number (9435132).

Almost surely, 2^85664722 is an apocalyptic number.

85664722 is a deficient number, since it is larger than the sum of its proper divisors (65297390).

85664722 is a wasteful number, since it uses less digits than its factorization.

85664722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299553.

The product of its digits is 161280, while the sum is 40.

The square root of 85664722 is about 9255.5238641581. The cubic root of 85664722 is about 440.8261372804.

The spelling of 85664722 in words is "eighty-five million, six hundred sixty-four thousand, seven hundred twenty-two".