630724 has 24 divisors (see below), whose sum is σ = 1195040. Its totient is φ = 290304.

The previous prime is 630719. The next prime is 630733. The reversal of 630724 is 427036.

It is a junction number, because it is equal to n+sod(n) for n = 630695 and 630704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3172 + ... + 3364.

2⁶³⁰⁷²⁴ is an apocalyptic number.

It is an amenable number.

630724 is a deficient number, since it is larger than the sum of its proper divisors (564316).

630724 is a wasteful number, since it uses less digits than its factorization.

630724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 630724 is about 794.1813394937. The cubic root of 630724 is about 85.7590152784.

The spelling of 630724 in words is "six hundred thirty thousand, seven hundred twenty-four".