64564683 has 8 divisors (see below), whose sum is σ = 86239296. Its totient is φ = 42966600.

The previous prime is 64564681. The next prime is 64564711. The reversal of 64564683 is 38646546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64564683 - 2¹ = 64564681 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64564681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17133 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (10779912).

Almost surely, 2^64564683 is an apocalyptic number.

64564683 is a deficient number, since it is larger than the sum of its proper divisors (21674613).

64564683 is a wasteful number, since it uses less digits than its factorization.

64564683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38265.

The product of its digits is 414720, while the sum is 42.

The square root of 64564683 is about 8035.2151806906. The cubic root of 64564683 is about 401.1729798501.

The spelling of 64564683 in words is "sixty-four million, five hundred sixty-four thousand, six hundred eighty-three".