85249904 has 10 divisors (see below), whose sum is σ = 165171720. Its totient is φ = 42624944.

The previous prime is 85249897. The next prime is 85249921. The reversal of 85249904 is 40994258.

It is a super-2 number, since 2×85249904² = 14535092264018432, which contains 22 as substring.

It is a congruent 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 as a sum of consecutive naturals, namely, 2664044 + ... + 2664075.

It is an arithmetic number, because the mean of its divisors is an integer number (16517172).

Almost surely, 2^85249904 is an apocalyptic number.

It is an amenable number.

85249904 is a deficient number, since it is larger than the sum of its proper divisors (79921816).

85249904 is a wasteful number, since it uses less digits than its factorization.

85249904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328127 (or 5328121 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 85249904 is about 9233.0874576168. The cubic root of 85249904 is about 440.1134418240.

The spelling of 85249904 in words is "eighty-five million, two hundred forty-nine thousand, nine hundred four".