6891713 has 2 divisors, whose sum is σ = 6891714. Its totient is φ = 6891712.

The previous prime is 6891691. The next prime is 6891721. The reversal of 6891713 is 3171986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6822544 + 69169 = 2612^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 6891713 - 2⁸ = 6891457 is a prime.

It is not a weakly prime, because it can be changed into another prime (6891733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445856 + 3445857.

It is an arithmetic number, because the mean of its divisors is an integer number (3445857).

Almost surely, 2^6891713 is an apocalyptic number.

It is an amenable number.

6891713 is a deficient number, since it is larger than the sum of its proper divisors (1).

6891713 is an equidigital number, since it uses as much as digits as its factorization.

6891713 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 6891713 is about 2625.2072299154. The cubic root of 6891713 is about 190.3015801545.

The spelling of 6891713 in words is "six million, eight hundred ninety-one thousand, seven hundred thirteen".