664489484 has 12 divisors (see below), whose sum is σ = 1163609664. Its totient is φ = 332029584.

The previous prime is 664489459. The next prime is 664489513. The reversal of 664489484 is 484984466.

664489484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46739 + ... + 59274.

It is an arithmetic number, because the mean of its divisors is an integer number (96967472).

Almost surely, 2^664489484 is an apocalyptic number.

It is an amenable number.

664489484 is a deficient number, since it is larger than the sum of its proper divisors (499120180).

664489484 is a wasteful number, since it uses less digits than its factorization.

664489484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107584 (or 107582 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 53.

The square root of 664489484 is about 25777.6935353030. The cubic root of 664489484 is about 872.6284555111.

The spelling of 664489484 in words is "six hundred sixty-four million, four hundred eighty-nine thousand, four hundred eighty-four".