831360 has 64 divisors (see below), whose sum is σ = 2656080. Its totient is φ = 221184.

The previous prime is 831329. The next prime is 831361. The reversal of 831360 is 63138.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831361) 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, 1704 + ... + 2136.

2⁸³¹³⁶⁰ is an apocalyptic number.

831360 is a gapful number since it is divisible by the number (80) 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 831360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328040).

831360 is an abundant number, since it is smaller than the sum of its proper divisors (1824720).

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

831360 is a wasteful number, since it uses less digits than its factorization.

831360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 831360 is about 911.7894493796. The cubic root of 831360 is about 94.0292650693.

Adding to 831360 its reverse (63138), we get a palindrome (894498).

The spelling of 831360 in words is "eight hundred thirty-one thousand, three hundred sixty".