64004745 has 64 divisors (see below), whose sum is σ = 129392640. Its totient is φ = 26323968.

The previous prime is 64004729. The next prime is 64004753. The reversal of 64004745 is 54740046.

It is not a de Polignac number, because 64004745 - 2⁴ = 64004729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40276 + ... + 41834.

It is an arithmetic number, because the mean of its divisors is an integer number (2021760).

Almost surely, 2^64004745 is an apocalyptic number.

It is an amenable number.

64004745 is an abundant number, since it is smaller than the sum of its proper divisors (65387895).

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

64004745 is a wasteful number, since it uses less digits than its factorization.

64004745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 64004745 is about 8000.2965570034. The cubic root of 64004745 is about 400.0098851724.

The spelling of 64004745 in words is "sixty-four million, four thousand, seven hundred forty-five".