831275328 has 112 divisors (see below), whose sum is σ = 2426671296. Its totient is φ = 249507840.

The previous prime is 831275317. The next prime is 831275329. The reversal of 831275328 is 823572138.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831275329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98275 + ... + 106397.

It is an arithmetic number, because the mean of its divisors is an integer number (21666708).

Almost surely, 2^831275328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831275328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213335648).

831275328 is an abundant number, since it is smaller than the sum of its proper divisors (1595395968).

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

831275328 is a wasteful number, since it uses less digits than its factorization.

831275328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192 (or 8182 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 831275328 is about 28831.8457265573. The cubic root of 831275328 is about 940.2607274340.

The spelling of 831275328 in words is "eight hundred thirty-one million, two hundred seventy-five thousand, three hundred twenty-eight".