831380 has 24 divisors (see below), whose sum is σ = 1905120. Its totient is φ = 302240.

The previous prime is 831373. The next prime is 831407. The reversal of 831380 is 83138.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 2109.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2⁸³¹³⁸⁰ is an apocalyptic number.

It is an amenable number.

831380 is an abundant number, since it is smaller than the sum of its proper divisors (1073740).

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

831380 is a wasteful number, since it uses less digits than its factorization.

831380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799 (or 3797 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 831380 is about 911.8004167580. The cubic root of 831380 is about 94.0300190829.

The spelling of 831380 in words is "eight hundred thirty-one thousand, three hundred eighty".