6998197 has 2 divisors, whose sum is σ = 6998198. Its totient is φ = 6998196.

The previous prime is 6998191. The next prime is 6998209. The reversal of 6998197 is 7918996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6728836 + 269361 = 2594^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 6998197 - 2¹¹ = 6996149 is a prime.

It is a super-2 number, since 2×6998197² = 97949522501618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6998197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6998191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499098 + 3499099.

It is an arithmetic number, because the mean of its divisors is an integer number (3499099).

Almost surely, 2^6998197 is an apocalyptic number.

It is an amenable number.

6998197 is a deficient number, since it is larger than the sum of its proper divisors (1).

6998197 is an equidigital number, since it uses as much as digits as its factorization.

6998197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 49.

The square root of 6998197 is about 2645.4105541484. The cubic root of 6998197 is about 191.2766929863.

The spelling of 6998197 in words is "six million, nine hundred ninety-eight thousand, one hundred ninety-seven".