64573312 has 16 divisors (see below), whose sum is σ = 128642400. Its totient is φ = 32286592.

The previous prime is 64573307. The next prime is 64573321. The reversal of 64573312 is 21337546.

64573312 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 (16).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 252112 + ... + 252367.

It is an arithmetic number, because the mean of its divisors is an integer number (8040150).

Almost surely, 2^64573312 is an apocalyptic number.

It is an amenable number.

64573312 is a deficient number, since it is larger than the sum of its proper divisors (64069088).

64573312 is an equidigital number, since it uses as much as digits as its factorization.

64573312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504493 (or 504481 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 64573312 is about 8035.7521116570. The cubic root of 64573312 is about 401.1908511655.

The spelling of 64573312 in words is "sixty-four million, five hundred seventy-three thousand, three hundred twelve".