64576800 has 108 divisors (see below), whose sum is σ = 227739330. Its totient is φ = 17218560.

The previous prime is 64576789. The next prime is 64576817. The reversal of 64576800 is 867546.

It is a happy number.

64576800 is a `hidden beast` number, since 6 + 4 + 576 + 80 + 0 = 666.

64576800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 48608784 + 15968016 = 6972^2 + 3996^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2716 + ... + 11684.

Almost surely, 2^64576800 is an apocalyptic number.

64576800 is a gapful number since it is divisible by the number (60) 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 64576800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113869665).

64576800 is an abundant number, since it is smaller than the sum of its proper divisors (163162530).

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

64576800 is a wasteful number, since it uses less digits than its factorization.

64576800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8995 (or 8979 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 64576800 is about 8035.9691388158. The cubic root of 64576800 is about 401.1980746269.

The spelling of 64576800 in words is "sixty-four million, five hundred seventy-six thousand, eight hundred".