831982897 has 2 divisors, whose sum is σ = 831982898. Its totient is φ = 831982896.

The previous prime is 831982883. The next prime is 831982919. The reversal of 831982897 is 798289138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 831976336 + 6561 = 28844^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 831982897 - 2¹⁵ = 831950129 is a prime.

It is not a weakly prime, because it can be changed into another prime (831983897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415991448 + 415991449.

It is an arithmetic number, because the mean of its divisors is an integer number (415991449).

Almost surely, 2^831982897 is an apocalyptic number.

It is an amenable number.

831982897 is a deficient number, since it is larger than the sum of its proper divisors (1).

831982897 is an equidigital number, since it uses as much as digits as its factorization.

831982897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 55.

The square root of 831982897 is about 28844.1137322678. The cubic root of 831982897 is about 940.5274303523.

The spelling of 831982897 in words is "eight hundred thirty-one million, nine hundred eighty-two thousand, eight hundred ninety-seven".