664039303 has 16 divisors (see below), whose sum is σ = 724456800. Its totient is φ = 606973248.

The previous prime is 664039289. The next prime is 664039307. The reversal of 664039303 is 303930466.

It is not a de Polignac number, because 664039303 - 2²⁵ = 630484871 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 (664039307) 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, 462675 + ... + 464107.

It is an arithmetic number, because the mean of its divisors is an integer number (45278550).

Almost surely, 2^664039303 is an apocalyptic number.

664039303 is a deficient number, since it is larger than the sum of its proper divisors (60417497).

664039303 is an equidigital number, since it uses as much as digits as its factorization.

664039303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 664039303 is about 25768.9600682682. The cubic root of 664039303 is about 872.4313470501.

Adding to 664039303 its reverse (303930466), we get a palindrome (967969769).

The spelling of 664039303 in words is "six hundred sixty-four million, thirty-nine thousand, three hundred three".