64675584 has 90 divisors (see below), whose sum is σ = 192912720. Its totient is φ = 21551616.

The previous prime is 64675561. The next prime is 64675603. The reversal of 64675584 is 48557646.

64675584 is a `hidden beast` number, since 6 + 4 + 67 + 5 + 584 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19177 + ... + 22295.

Almost surely, 2^64675584 is an apocalyptic number.

64675584 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64675584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96456360).

64675584 is an abundant number, since it is smaller than the sum of its proper divisors (128237136).

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

64675584 is an equidigital number, since it uses as much as digits as its factorization.

64675584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147 (or 3124 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 64675584 is about 8042.1131551353. The cubic root of 64675584 is about 401.4025431009.

The spelling of 64675584 in words is "sixty-four million, six hundred seventy-five thousand, five hundred eighty-four".