630713031 has 16 divisors (see below), whose sum is σ = 906608640. Its totient is φ = 387715680.

The previous prime is 630713029. The next prime is 630713053. The reversal of 630713031 is 130317036.

It is not a de Polignac number, because 630713031 - 2¹ = 630713029 is a prime.

It is a super-2 number, since 2×630713031² = 795597854946413922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 630712992 and 630713010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630718031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30490 + ... + 46808.

It is an arithmetic number, because the mean of its divisors is an integer number (56663040).

Almost surely, 2^630713031 is an apocalyptic number.

630713031 is a deficient number, since it is larger than the sum of its proper divisors (275895609).

630713031 is a wasteful number, since it uses less digits than its factorization.

630713031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17326.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 630713031 is about 25114.0006968225. Note that the first 3 decimals coincide. The cubic root of 630713031 is about 857.5851812691.

The spelling of 630713031 in words is "six hundred thirty million, seven hundred thirteen thousand, thirty-one".