630759688 has 16 divisors (see below), whose sum is σ = 1273649580. Its totient is φ = 291119808.

The previous prime is 630759677. The next prime is 630759691. The reversal of 630759688 is 886957036.

It can be written as a sum of positive squares in 2 ways, for example, as 629909604 + 850084 = 25098^2 + 922^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3032395 + ... + 3032602.

Almost surely, 2^630759688 is an apocalyptic number.

It is an amenable number.

630759688 is an abundant number, since it is smaller than the sum of its proper divisors (642889892).

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

630759688 is a wasteful number, since it uses less digits than its factorization.

630759688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065016 (or 6065012 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 630759688 is about 25114.9295838153. The cubic root of 630759688 is about 857.6063273706.

The spelling of 630759688 in words is "six hundred thirty million, seven hundred fifty-nine thousand, six hundred eighty-eight".