831948312 has 128 divisors (see below), whose sum is σ = 2396640960. Its totient is φ = 238387200.

The previous prime is 831948311. The next prime is 831948323. The reversal of 831948312 is 213849138.

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 (831948311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 534928 + ... + 536480.

Almost surely, 2^831948312 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 831948312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198320480).

831948312 is an abundant number, since it is smaller than the sum of its proper divisors (1564692648).

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

831948312 is a wasteful number, since it uses less digits than its factorization.

831948312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693 (or 1689 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 831948312 is about 28843.5142103038. The cubic root of 831948312 is about 940.5143977960.

The spelling of 831948312 in words is "eight hundred thirty-one million, nine hundred forty-eight thousand, three hundred twelve".