64656395 has 8 divisors (see below), whose sum is σ = 78064656. Its totient is φ = 51407136.

The previous prime is 64656379. The next prime is 64656413. The reversal of 64656395 is 59365646.

64656395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 64656395 - 2⁴ = 64656379 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 38852 + ... + 40481.

It is an arithmetic number, because the mean of its divisors is an integer number (9758082).

Almost surely, 2^64656395 is an apocalyptic number.

64656395 is a deficient number, since it is larger than the sum of its proper divisors (13408261).

64656395 is a wasteful number, since it uses less digits than its factorization.

64656395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79501.

The product of its digits is 583200, while the sum is 44.

The square root of 64656395 is about 8040.9200344239. The cubic root of 64656395 is about 401.3628409711.

The spelling of 64656395 in words is "sixty-four million, six hundred fifty-six thousand, three hundred ninety-five".