831889197 has 20 divisors (see below), whose sum is σ = 1258438720. Its totient is φ = 547568424.

The previous prime is 831889193. The next prime is 831889229. The reversal of 831889197 is 791988138.

It is not a de Polignac number, because 831889197 - 2² = 831889193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831889193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58603 + ... + 71400.

It is an arithmetic number, because the mean of its divisors is an integer number (62921936).

Almost surely, 2^831889197 is an apocalyptic number.

It is an amenable number.

831889197 is a deficient number, since it is larger than the sum of its proper divisors (426549523).

831889197 is a wasteful number, since it uses less digits than its factorization.

831889197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130094 (or 130085 counting only the distinct ones).

The product of its digits is 870912, while the sum is 54.

The square root of 831889197 is about 28842.4894383269. The cubic root of 831889197 is about 940.4921208409.

The spelling of 831889197 in words is "eight hundred thirty-one million, eight hundred eighty-nine thousand, one hundred ninety-seven".