630984664 has 16 divisors (see below), whose sum is σ = 1221261120. Its totient is φ = 305315040.

The previous prime is 630984649. The next prime is 630984667. The reversal of 630984664 is 466489036.

630984664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630984667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271899 + ... + 1272394.

It is an arithmetic number, because the mean of its divisors is an integer number (76328820).

Almost surely, 2^630984664 is an apocalyptic number.

It is an amenable number.

630984664 is a deficient number, since it is larger than the sum of its proper divisors (590276456).

630984664 is a wasteful number, since it uses less digits than its factorization.

630984664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544330 (or 2544326 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The square root of 630984664 is about 25119.4081140460. The cubic root of 630984664 is about 857.7082774002.

The spelling of 630984664 in words is "six hundred thirty million, nine hundred eighty-four thousand, six hundred sixty-four".