630726 has 16 divisors (see below), whose sum is σ = 1302528. Its totient is φ = 203400.

The previous prime is 630719. The next prime is 630733. The reversal of 630726 is 627036.

It is an interprime number because it is at equal distance from previous prime (630719) and next prime (630733).

It is a junction number, because it is equal to n+sod(n) for n = 630696 and 630705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510 + ... + 1881.

It is an arithmetic number, because the mean of its divisors is an integer number (81408).

2⁶³⁰⁷²⁶ is an apocalyptic number.

630726 is an abundant number, since it is smaller than the sum of its proper divisors (671802).

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

630726 is a wasteful number, since it uses less digits than its factorization.

630726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 630726 is about 794.1825986510. The cubic root of 630726 is about 85.7591059244.

The spelling of 630726 in words is "six hundred thirty thousand, seven hundred twenty-six".