831713647 has 2 divisors, whose sum is σ = 831713648. Its totient is φ = 831713646.

The previous prime is 831713569. The next prime is 831713653. The reversal of 831713647 is 746317138.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 831713647 - 2²⁷ = 697495919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (831713347) 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 as a sum of consecutive naturals, namely, 415856823 + 415856824.

It is an arithmetic number, because the mean of its divisors is an integer number (415856824).

Almost surely, 2^831713647 is an apocalyptic number.

831713647 is a deficient number, since it is larger than the sum of its proper divisors (1).

831713647 is an equidigital number, since it uses as much as digits as its factorization.

831713647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 831713647 is about 28839.4460244992. The cubic root of 831713647 is about 940.4259601841.

The spelling of 831713647 in words is "eight hundred thirty-one million, seven hundred thirteen thousand, six hundred forty-seven".