64568832 has 80 divisors (see below), whose sum is σ = 173893632. Its totient is φ = 21288960.

The previous prime is 64568831. The next prime is 64568849. The reversal of 64568832 is 23886546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64568831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194907 + ... + 195237.

Almost surely, 2^64568832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64568832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86946816).

64568832 is an abundant number, since it is smaller than the sum of its proper divisors (109324800).

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

64568832 is a wasteful number, since it uses less digits than its factorization.

64568832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 463 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 64568832 is about 8035.4733525786. The cubic root of 64568832 is about 401.1815729434.

The spelling of 64568832 in words is "sixty-four million, five hundred sixty-eight thousand, eight hundred thirty-two".