6398597 has 2 divisors, whose sum is σ = 6398598. Its totient is φ = 6398596.

The previous prime is 6398593. The next prime is 6398599. The reversal of 6398597 is 7958936.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4532641 + 1865956 = 2129^2 + 1366^2 .

It is a cyclic number.

It is not a de Polignac number, because 6398597 - 2² = 6398593 is a prime.

Together with 6398599, 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 (6398593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3199298 + 3199299.

It is an arithmetic number, because the mean of its divisors is an integer number (3199299).

Almost surely, 2^6398597 is an apocalyptic number.

It is an amenable number.

6398597 is a deficient number, since it is larger than the sum of its proper divisors (1).

6398597 is an equidigital number, since it uses as much as digits as its factorization.

6398597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 6398597 is about 2529.5448207138. The cubic root of 6398597 is about 185.6499853757.

The spelling of 6398597 in words is "six million, three hundred ninety-eight thousand, five hundred ninety-seven".