630787104 has 36 divisors (see below), whose sum is σ = 1793801646. Its totient is φ = 210262272.

The previous prime is 630787103. The next prime is 630787127. The reversal of 630787104 is 401787036.

630787104 is a `hidden beast` number, since 630 + 7 + 8 + 7 + 10 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 590490000 + 40297104 = 24300^2 + 6348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (630787103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1094829 + ... + 1095404.

Almost surely, 2^630787104 is an apocalyptic number.

It is an amenable number.

630787104 is an abundant number, since it is smaller than the sum of its proper divisors (1163014542).

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

630787104 is a wasteful number, since it uses less digits than its factorization.

630787104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190249 (or 2190238 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 630787104 is about 25115.4753886921. The cubic root of 630787104 is about 857.6187524906.

The spelling of 630787104 in words is "six hundred thirty million, seven hundred eighty-seven thousand, one hundred four".