85944884 has 6 divisors (see below), whose sum is σ = 150403554. Its totient is φ = 42972440.

The previous prime is 85944857. The next prime is 85944899. The reversal of 85944884 is 48844958.

It can be written as a sum of positive squares in only one way, i.e., 58675600 + 27269284 = 7660^2 + 5222^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10743107 + ... + 10743114.

It is an arithmetic number, because the mean of its divisors is an integer number (25067259).

Almost surely, 2^85944884 is an apocalyptic number.

It is an amenable number.

85944884 is a deficient number, since it is larger than the sum of its proper divisors (64458670).

85944884 is a wasteful number, since it uses less digits than its factorization.

85944884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21486225 (or 21486223 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 50.

The square root of 85944884 is about 9270.6463636577. The cubic root of 85944884 is about 441.3061806287.

The spelling of 85944884 in words is "eighty-five million, nine hundred forty-four thousand, eight hundred eighty-four".