831276 has 48 divisors (see below), whose sum is σ = 2217600. Its totient is φ = 269136.

The previous prime is 831253. The next prime is 831287. The reversal of 831276 is 672138.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

831276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4555 + ... + 4733.

It is an arithmetic number, because the mean of its divisors is an integer number (46200).

2⁸³¹²⁷⁶ is an apocalyptic number.

831276 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108800).

831276 is an abundant number, since it is smaller than the sum of its proper divisors (1386324).

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

831276 is a wasteful number, since it uses less digits than its factorization.

831276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 227 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 831276 is about 911.7433849500. The cubic root of 831276 is about 94.0260980802.

The spelling of 831276 in words is "eight hundred thirty-one thousand, two hundred seventy-six".