630661008 has 20 divisors (see below), whose sum is σ = 1629207728. Its totient is φ = 210220320.

The previous prime is 630661001. The next prime is 630661021. The reversal of 630661008 is 800166036.

630661008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (630661001) 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, 6569338 + ... + 6569433.

Almost surely, 2^630661008 is an apocalyptic number.

It is an amenable number.

630661008 is an abundant number, since it is smaller than the sum of its proper divisors (998546720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630661008 is a wasteful number, since it uses less digits than its factorization.

630661008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13138782 (or 13138776 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 630661008 is about 25112.9649384536. The cubic root of 630661008 is about 857.5616019346.

The spelling of 630661008 in words is "six hundred thirty million, six hundred sixty-one thousand, eight".