85445004 has 12 divisors (see below), whose sum is σ = 199371704. Its totient is φ = 28481664.

The previous prime is 85444993. The next prime is 85445051. The reversal of 85445004 is 40054458.

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

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 3 ways as a sum of consecutive naturals, for example, 3560197 + ... + 3560220.

Almost surely, 2^85445004 is an apocalyptic number.

It is an amenable number.

85445004 is an abundant number, since it is smaller than the sum of its proper divisors (113926700).

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

85445004 is a wasteful number, since it uses less digits than its factorization.

85445004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7120424 (or 7120422 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 85445004 is about 9243.6466829926. The cubic root of 85445004 is about 440.4489288577.

The spelling of 85445004 in words is "eighty-five million, four hundred forty-five thousand, four".