64320607 has 16 divisors (see below), whose sum is σ = 70519680. Its totient is φ = 58312800.

The previous prime is 64320593. The next prime is 64320611. The reversal of 64320607 is 70602346.

It is not a de Polignac number, because 64320607 - 2⁷ = 64320479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64320667) 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 15 ways as a sum of consecutive naturals, for example, 304732 + ... + 304942.

It is an arithmetic number, because the mean of its divisors is an integer number (4407480).

Almost surely, 2^64320607 is an apocalyptic number.

64320607 is a deficient number, since it is larger than the sum of its proper divisors (6199073).

64320607 is a wasteful number, since it uses less digits than its factorization.

64320607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 64320607 is about 8020.0129052265. The cubic root of 64320607 is about 400.6668190133. Note that the first 3 decimals are identical.

The spelling of 64320607 in words is "sixty-four million, three hundred twenty thousand, six hundred seven".