831398346 has 24 divisors (see below), whose sum is σ = 1818202464. Its totient is φ = 274542120.

The previous prime is 831398339. The next prime is 831398389. The reversal of 831398346 is 643893138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213910 + ... + 217761.

It is an arithmetic number, because the mean of its divisors is an integer number (75758436).

Almost surely, 2^831398346 is an apocalyptic number.

831398346 is an abundant number, since it is smaller than the sum of its proper divisors (986804118).

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

831398346 is a wasteful number, since it uses less digits than its factorization.

831398346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431786 (or 431783 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 831398346 is about 28833.9790178185. The cubic root of 831398346 is about 940.3071072895.

It can be divided in two parts, 831398 and 346, that added together give a square (831744 = 912²).

The spelling of 831398346 in words is "eight hundred thirty-one million, three hundred ninety-eight thousand, three hundred forty-six".