6831971 has 2 divisors, whose sum is σ = 6831972. Its totient is φ = 6831970.

The previous prime is 6831941. The next prime is 6831991. The reversal of 6831971 is 1791386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6831971 - 2¹⁰ = 6830947 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6831911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3415985 + 3415986.

It is an arithmetic number, because the mean of its divisors is an integer number (3415986).

Almost surely, 2^6831971 is an apocalyptic number.

6831971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6831971 is an equidigital number, since it uses as much as digits as its factorization.

6831971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The square root of 6831971 is about 2613.8039329682. The cubic root of 6831971 is about 189.7500961959.

The spelling of 6831971 in words is "six million, eight hundred thirty-one thousand, nine hundred seventy-one".