831321268 has 6 divisors (see below), whose sum is σ = 1454812226. Its totient is φ = 415660632.

The previous prime is 831321259. The next prime is 831321311. The reversal of 831321268 is 862123138.

It is a happy number.

831321268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 540004644 + 291316624 = 23238^2 + 17068^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103915155 + ... + 103915162.

Almost surely, 2^831321268 is an apocalyptic number.

It is an amenable number.

831321268 is a deficient number, since it is larger than the sum of its proper divisors (623490958).

831321268 is a wasteful number, since it uses less digits than its factorization.

831321268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207830321 (or 207830319 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 831321268 is about 28832.6424040531. The cubic root of 831321268 is about 940.2780481221.

The spelling of 831321268 in words is "eight hundred thirty-one million, three hundred twenty-one thousand, two hundred sixty-eight".