663257704 has 16 divisors (see below), whose sum is σ = 1264687200. Its totient is φ = 326007792.

The previous prime is 663257677. The next prime is 663257717. The reversal of 663257704 is 407752366.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702132 + ... + 703075.

It is an arithmetic number, because the mean of its divisors is an integer number (79042950).

Almost surely, 2^663257704 is an apocalyptic number.

It is an amenable number.

663257704 is a deficient number, since it is larger than the sum of its proper divisors (601429496).

663257704 is a wasteful number, since it uses less digits than its factorization.

663257704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405272 (or 1405268 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The square root of 663257704 is about 25753.7900900042. The cubic root of 663257704 is about 872.0889179310.

The spelling of 663257704 in words is "six hundred sixty-three million, two hundred fifty-seven thousand, seven hundred four".