664364579 has 2 divisors, whose sum is σ = 664364580. Its totient is φ = 664364578.

The previous prime is 664364527. The next prime is 664364587. The reversal of 664364579 is 975463466.

664364579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 664364579 - 2¹² = 664360483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (664360579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332182289 + 332182290.

It is an arithmetic number, because the mean of its divisors is an integer number (332182290).

Almost surely, 2^664364579 is an apocalyptic number.

664364579 is a deficient number, since it is larger than the sum of its proper divisors (1).

664364579 is an equidigital number, since it uses as much as digits as its factorization.

664364579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 50.

The square root of 664364579 is about 25775.2706872304. The cubic root of 664364579 is about 872.5737756955.

The spelling of 664364579 in words is "six hundred sixty-four million, three hundred sixty-four thousand, five hundred seventy-nine".