630568 has 24 divisors (see below), whose sum is σ = 1244250. Its totient is φ = 299552.

The previous prime is 630559. The next prime is 630577. The reversal of 630568 is 865036.

630568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (630559) and next prime (630577).

It can be written as a sum of positive squares in only one way, i.e., 611524 + 19044 = 782^2 + 138^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4158 + ... + 4306.

2⁶³⁰⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

630568 is a deficient number, since it is larger than the sum of its proper divisors (613682).

630568 is a wasteful number, since it uses less digits than its factorization.

630568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 630568 is about 794.0831190751. The cubic root of 630568 is about 85.7519442988.

The spelling of 630568 in words is "six hundred thirty thousand, five hundred sixty-eight".