831880 has 32 divisors (see below), whose sum is σ = 2139840. Its totient is φ = 285120.

The previous prime is 831863. The next prime is 831881. The reversal of 831880 is 88138.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (831881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (66870).

2⁸³¹⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

831880 is an abundant number, since it is smaller than the sum of its proper divisors (1307960).

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

831880 is a wasteful number, since it uses less digits than its factorization.

831880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 831880 is about 912.0745583558. The cubic root of 831880 is about 94.0488654939.

It can be divided in two parts, 831 and 880, that added together give a triangular number (1711 = T₅₈).

The spelling of 831880 in words is "eight hundred thirty-one thousand, eight hundred eighty".