85587044 has 24 divisors (see below), whose sum is σ = 159417720. Its totient is φ = 40065536.

The previous prime is 85587023. The next prime is 85587059. The reversal of 85587044 is 44078558.

It can be written as a sum of positive squares in 4 ways, for example, as 19360000 + 66227044 = 4400^2 + 8138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85586992 and 85587010.

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, 10202 + ... + 16590.

It is an arithmetic number, because the mean of its divisors is an integer number (6642405).

Almost surely, 2^85587044 is an apocalyptic number.

It is an amenable number.

85587044 is a deficient number, since it is larger than the sum of its proper divisors (73830676).

85587044 is a wasteful number, since it uses less digits than its factorization.

85587044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607 (or 6605 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 85587044 is about 9251.3266075736. The cubic root of 85587044 is about 440.6928546910.

The spelling of 85587044 in words is "eighty-five million, five hundred eighty-seven thousand, forty-four".