6717443197 has 2 divisors, whose sum is σ = 6717443198. Its totient is φ = 6717443196.

The previous prime is 6717443191. The next prime is 6717443207. The reversal of 6717443197 is 7913447176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3695302521 + 3022140676 = 60789^2 + 54974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6717443197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6717443197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6717443191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3358721598 + 3358721599.

It is an arithmetic number, because the mean of its divisors is an integer number (3358721599).

Almost surely, 2^6717443197 is an apocalyptic number.

It is an amenable number.

6717443197 is a deficient number, since it is larger than the sum of its proper divisors (1).

6717443197 is an equidigital number, since it uses as much as digits as its factorization.

6717443197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 889056, while the sum is 49.

The square root of 6717443197 is about 81960.0097425568. The cubic root of 6717443197 is about 1886.8382321218.

The spelling of 6717443197 in words is "six billion, seven hundred seventeen million, four hundred forty-three thousand, one hundred ninety-seven".