630838 has 16 divisors (see below), whose sum is σ = 1073520. Its totient is φ = 275616.

The previous prime is 630827. The next prime is 630841. The reversal of 630838 is 838036.

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, 145 + ... + 1132.

It is an arithmetic number, because the mean of its divisors is an integer number (67095).

2⁶³⁰⁸³⁸ is an apocalyptic number.

630838 is a deficient number, since it is larger than the sum of its proper divisors (442682).

630838 is a wasteful number, since it uses less digits than its factorization.

630838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 630838 is about 794.2531082722. The cubic root of 630838 is about 85.7641817954.

The spelling of 630838 in words is "six hundred thirty thousand, eight hundred thirty-eight".