64475712 has 84 divisors (see below), whose sum is σ = 211222336. Its totient is φ = 18420480.

The previous prime is 64475707. The next prime is 64475737. The reversal of 64475712 is 21757446.

64475712 is a `hidden beast` number, since 644 + 7 + 5 + 7 + 1 + 2 = 666.

64475712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (84).

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 11 ways as a sum of consecutive naturals, for example, 3964 + ... + 12027.

Almost surely, 2^64475712 is an apocalyptic number.

It is an amenable number.

64475712 is an abundant number, since it is smaller than the sum of its proper divisors (146746624).

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

64475712 is a wasteful number, since it uses less digits than its factorization.

64475712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16016 (or 16003 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 64475712 is about 8029.6769548968. The cubic root of 64475712 is about 400.9886212238.

The spelling of 64475712 in words is "sixty-four million, four hundred seventy-five thousand, seven hundred twelve".