831997983 has 16 divisors (see below), whose sum is σ = 1121904000. Its totient is φ = 548412000.

The previous prime is 831997967. The next prime is 831997987. The reversal of 831997983 is 389799138.

831997983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 831997983 - 2⁴ = 831997967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831997987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100693 + ... + 108641.

It is an arithmetic number, because the mean of its divisors is an integer number (70119000).

Almost surely, 2^831997983 is an apocalyptic number.

831997983 is a deficient number, since it is larger than the sum of its proper divisors (289906017).

831997983 is a wasteful number, since it uses less digits than its factorization.

831997983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342.

The product of its digits is 2939328, while the sum is 57.

The square root of 831997983 is about 28844.3752402440. The cubic root of 831997983 is about 940.5331150489.

The spelling of 831997983 in words is "eight hundred thirty-one million, nine hundred ninety-seven thousand, nine hundred eighty-three".