664383593 has 2 divisors, whose sum is σ = 664383594. Its totient is φ = 664383592.

The previous prime is 664383571. The next prime is 664383619. The reversal of 664383593 is 395383466.

664383593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 576624169 + 87759424 = 24013^2 + 9368^2 .

It is a cyclic number.

It is not a de Polignac number, because 664383593 - 2⁶ = 664383529 is a prime.

It is not a weakly prime, because it can be changed into another prime (664383553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332191796 + 332191797.

It is an arithmetic number, because the mean of its divisors is an integer number (332191797).

Almost surely, 2^664383593 is an apocalyptic number.

It is an amenable number.

664383593 is a deficient number, since it is larger than the sum of its proper divisors (1).

664383593 is an equidigital number, since it uses as much as digits as its factorization.

664383593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 47.

The square root of 664383593 is about 25775.6395264987. The cubic root of 664383593 is about 872.5820999199.

The spelling of 664383593 in words is "six hundred sixty-four million, three hundred eighty-three thousand, five hundred ninety-three".