6986717 has 2 divisors, whose sum is σ = 6986718. Its totient is φ = 6986716.

The previous prime is 6986713. The next prime is 6986719. The reversal of 6986717 is 7176896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6911641 + 75076 = 2629^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 6986717 - 2² = 6986713 is a prime.

Together with 6986719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6986713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493358 + 3493359.

It is an arithmetic number, because the mean of its divisors is an integer number (3493359).

Almost surely, 2^6986717 is an apocalyptic number.

It is an amenable number.

6986717 is a deficient number, since it is larger than the sum of its proper divisors (1).

6986717 is an equidigital number, since it uses as much as digits as its factorization.

6986717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 44.

The square root of 6986717 is about 2643.2398680407. The cubic root of 6986717 is about 191.1720442108.

The spelling of 6986717 in words is "six million, nine hundred eighty-six thousand, seven hundred seventeen".