85628904 has 32 divisors (see below), whose sum is σ = 215160000. Its totient is φ = 28397952.

The previous prime is 85628903. The next prime is 85628999. The reversal of 85628904 is 40982658.

It is not an unprimeable number, because it can be changed into a prime (85628903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (6723750).

Almost surely, 2^85628904 is an apocalyptic number.

It is an amenable number.

85628904 is an abundant number, since it is smaller than the sum of its proper divisors (129531096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85628904 is a wasteful number, since it uses less digits than its factorization.

85628904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18137 (or 18133 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 85628904 is about 9253.5887092522. The cubic root of 85628904 is about 440.7646895364.

The spelling of 85628904 in words is "eighty-five million, six hundred twenty-eight thousand, nine hundred four".