831028 has 36 divisors (see below), whose sum is σ = 1709316. Its totient is φ = 352000.

The previous prime is 831023. The next prime is 831031. The reversal of 831028 is 820138.

831028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 736164 + 94864 = 858^2 + 308^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8178 + ... + 8278.

It is an arithmetic number, because the mean of its divisors is an integer number (47481).

2⁸³¹⁰²⁸ is an apocalyptic number.

It is an amenable number.

831028 is an abundant number, since it is smaller than the sum of its proper divisors (878288).

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

831028 is a wasteful number, since it uses less digits than its factorization.

831028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 831028 is about 911.6073716244. The cubic root of 831028 is about 94.0167466768.

It can be divided in two parts, 8310 and 28, that added together give a palindrome (8338).

The spelling of 831028 in words is "eight hundred thirty-one thousand, twenty-eight".