630876213 has 36 divisors (see below), whose sum is σ = 1018166604. Its totient is φ = 376041600.

The previous prime is 630876193. The next prime is 630876217. The reversal of 630876213 is 312678036.

It is a happy number.

630876213 is a `hidden beast` number, since 630 + 8 + 7 + 6 + 2 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24830289 + 606045924 = 4983^2 + 24618^2 .

It is not a de Polignac number, because 630876213 - 2⁹ = 630875701 is a prime.

It is a super-2 number, since 2×630876213² = 796009592258442738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630876217) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61681 + ... + 71177.

Almost surely, 2^630876213 is an apocalyptic number.

It is an amenable number.

630876213 is a deficient number, since it is larger than the sum of its proper divisors (387290391).

630876213 is a wasteful number, since it uses less digits than its factorization.

630876213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9586 (or 9572 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 630876213 is about 25117.2493119768. The cubic root of 630876213 is about 857.6591348164.

The spelling of 630876213 in words is "six hundred thirty million, eight hundred seventy-six thousand, two hundred thirteen".