85645984 has 24 divisors (see below), whose sum is σ = 168885108. Its totient is φ = 42754560.

The previous prime is 85645943. The next prime is 85645999. The reversal of 85645984 is 48954658.

It can be written as a sum of positive squares in 2 ways, for example, as 85155984 + 490000 = 9228^2 + 700^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22594 + ... + 26110.

Almost surely, 2^85645984 is an apocalyptic number.

It is an amenable number.

85645984 is a deficient number, since it is larger than the sum of its proper divisors (83239124).

85645984 is a wasteful number, since it uses less digits than its factorization.

85645984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4288 (or 4280 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 85645984 is about 9254.5115484287. The cubic root of 85645984 is about 440.7939933503.

The spelling of 85645984 in words is "eighty-five million, six hundred forty-five thousand, nine hundred eighty-four".