630938 has 32 divisors (see below), whose sum is σ = 1254528. Its totient is φ = 230400.

The previous prime is 630919. The next prime is 630941. The reversal of 630938 is 839036.

630938 is nontrivially palindromic in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 630938.

It is a congruent number.

It is an unprimeable number.

630938 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2498 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (39204).

2⁶³⁰⁹³⁸ is an apocalyptic number.

630938 is a deficient number, since it is larger than the sum of its proper divisors (623590).

630938 is a wasteful number, since it uses less digits than its factorization.

630938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 630938 is about 794.3160580021. The cubic root of 630938 is about 85.7687133154.

The spelling of 630938 in words is "six hundred thirty thousand, nine hundred thirty-eight".