630606992 has 10 divisors (see below), whose sum is σ = 1221801078. Its totient is φ = 315303488.

The previous prime is 630606983. The next prime is 630607079. The reversal of 630606992 is 299606036.

It can be written as a sum of positive squares in only one way, i.e., 443355136 + 187251856 = 21056^2 + 13684^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19706453 + ... + 19706484.

Almost surely, 2^630606992 is an apocalyptic number.

It is an amenable number.

630606992 is a deficient number, since it is larger than the sum of its proper divisors (591194086).

630606992 is a wasteful number, since it uses less digits than its factorization.

630606992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39412945 (or 39412939 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 630606992 is about 25111.8894549972. The cubic root of 630606992 is about 857.5371179041.

The spelling of 630606992 in words is "six hundred thirty million, six hundred six thousand, nine hundred ninety-two".