85479924 has 12 divisors (see below), whose sum is σ = 199453184. Its totient is φ = 28493304.

The previous prime is 85479923. The next prime is 85479929. The reversal of 85479924 is 42997458.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85479923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3561652 + ... + 3561675.

Almost surely, 2^85479924 is an apocalyptic number.

It is an amenable number.

85479924 is an abundant number, since it is smaller than the sum of its proper divisors (113973260).

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

85479924 is a wasteful number, since it uses less digits than its factorization.

85479924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123334 (or 7123332 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 85479924 is about 9245.5353549700. The cubic root of 85479924 is about 440.5089221520.

The spelling of 85479924 in words is "eighty-five million, four hundred seventy-nine thousand, nine hundred twenty-four".