64575963 has 6 divisors (see below), whose sum is σ = 93276404. Its totient is φ = 43050636.

The previous prime is 64575947. The next prime is 64575971. The reversal of 64575963 is 36957546.

64575963 is a `hidden beast` number, since 6 + 4 + 57 + 596 + 3 = 666.

It is not a de Polignac number, because 64575963 - 2⁴ = 64575947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64575923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3587545 + ... + 3587562.

Almost surely, 2^64575963 is an apocalyptic number.

64575963 is a deficient number, since it is larger than the sum of its proper divisors (28700441).

64575963 is a wasteful number, since it uses less digits than its factorization.

64575963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175113 (or 7175110 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 64575963 is about 8035.9170602987. The cubic root of 64575963 is about 401.1963412684.

The spelling of 64575963 in words is "sixty-four million, five hundred seventy-five thousand, nine hundred sixty-three".