630616968 has 64 divisors (see below), whose sum is σ = 1755124800. Its totient is φ = 209796480.

The previous prime is 630616951. The next prime is 630616981. The reversal of 630616968 is 869616036.

630616968 is a `hidden beast` number, since 630 + 6 + 1 + 6 + 9 + 6 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120780 + ... + 125892.

It is an arithmetic number, because the mean of its divisors is an integer number (27423825).

Almost surely, 2^630616968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630616968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877562400).

630616968 is an abundant number, since it is smaller than the sum of its proper divisors (1124507832).

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

630616968 is a wasteful number, since it uses less digits than its factorization.

630616968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699 (or 5689 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 630616968 is about 25112.0880852230. The cubic root of 630616968 is about 857.5416398675.

The spelling of 630616968 in words is "six hundred thirty million, six hundred sixteen thousand, nine hundred sixty-eight".