631028 has 24 divisors (see below), whose sum is σ = 1216320. Its totient is φ = 285912.

The previous prime is 631013. The next prime is 631039. The reversal of 631028 is 820136.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 631028.

It is an unprimeable number.

631028 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 7 ways as a sum of consecutive naturals, for example, 27425 + ... + 27447.

It is an arithmetic number, because the mean of its divisors is an integer number (50680).

2⁶³¹⁰²⁸ is an apocalyptic number.

It is an amenable number.

631028 is a deficient number, since it is larger than the sum of its proper divisors (585292).

631028 is a wasteful number, since it uses less digits than its factorization.

631028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 631028 is about 794.3727084939. The cubic root of 631028 is about 85.7727912740.

The spelling of 631028 in words is "six hundred thirty-one thousand, twenty-eight".