630500856 has 16 divisors (see below), whose sum is σ = 1576252200. Its totient is φ = 210166944.

The previous prime is 630500851. The next prime is 630500867. The reversal of 630500856 is 658005036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630500851) 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, 13135411 + ... + 13135458.

Almost surely, 2^630500856 is an apocalyptic number.

It is an amenable number.

630500856 is an abundant number, since it is smaller than the sum of its proper divisors (945751344).

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

630500856 is a wasteful number, since it uses less digits than its factorization.

630500856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270878 (or 26270874 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 630500856 is about 25109.7761041392. The cubic root of 630500856 is about 857.4890051771.

The spelling of 630500856 in words is "six hundred thirty million, five hundred thousand, eight hundred fifty-six".