64085589 has 6 divisors (see below), whose sum is σ = 92568086. Its totient is φ = 42723720.

The previous prime is 64085573. The next prime is 64085627. The reversal of 64085589 is 98558046.

64085589 is a `hidden beast` number, since 64 + 0 + 8 + 5 + 589 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40640625 + 23444964 = 6375^2 + 4842^2 .

It is not a de Polignac number, because 64085589 - 2⁴ = 64085573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64085519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3560302 + ... + 3560319.

Almost surely, 2^64085589 is an apocalyptic number.

It is an amenable number.

64085589 is a deficient number, since it is larger than the sum of its proper divisors (28482497).

64085589 is a wasteful number, since it uses less digits than its factorization.

64085589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120627 (or 7120624 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 64085589 is about 8005.3475252484. The cubic root of 64085589 is about 400.1782309892.

The spelling of 64085589 in words is "sixty-four million, eighty-five thousand, five hundred eighty-nine".