64005008 has 20 divisors (see below), whose sum is σ = 125110668. Its totient is φ = 31718400.

The previous prime is 64004989. The next prime is 64005031. The reversal of 64005008 is 80050046.

It can be written as a sum of positive squares in 2 ways, for example, as 5513104 + 58491904 = 2348^2 + 7648^2 .

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 3 ways as a sum of consecutive naturals, for example, 15893 + ... + 19508.

Almost surely, 2^64005008 is an apocalyptic number.

It is an amenable number.

64005008 is a deficient number, since it is larger than the sum of its proper divisors (61105660).

64005008 is a wasteful number, since it uses less digits than its factorization.

64005008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35522 (or 35516 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 64005008 is about 8000.3129938772. The cubic root of 64005008 is about 400.0104330612.

The spelling of 64005008 in words is "sixty-four million, five thousand, eight".