6597988399 has 2 divisors, whose sum is σ = 6597988400. Its totient is φ = 6597988398.

The previous prime is 6597988379. The next prime is 6597988457. The reversal of 6597988399 is 9938897956.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6597988399 - 2²⁷ = 6463770671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6597988339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3298994199 + 3298994200.

It is an arithmetic number, because the mean of its divisors is an integer number (3298994200).

Almost surely, 2^6597988399 is an apocalyptic number.

6597988399 is a deficient number, since it is larger than the sum of its proper divisors (1).

6597988399 is an equidigital number, since it uses as much as digits as its factorization.

6597988399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264539520, while the sum is 73.

The square root of 6597988399 is about 81228.0025545378. The cubic root of 6597988399 is about 1875.5868644970.

The spelling of 6597988399 in words is "six billion, five hundred ninety-seven million, nine hundred eighty-eight thousand, three hundred ninety-nine".