6597997 has 18 divisors (see below), whose sum is σ = 8122158. Its totient is φ = 5343408.

The previous prime is 6597977. The next prime is 6598013. The reversal of 6597997 is 7997956.

6597997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5731236 + 866761 = 2394^2 + 931^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6597997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6597967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17503 + ... + 17875.

It is an arithmetic number, because the mean of its divisors is an integer number (451231).

Almost surely, 2^6597997 is an apocalyptic number.

It is an amenable number.

6597997 is a deficient number, since it is larger than the sum of its proper divisors (1524161).

6597997 is a wasteful number, since it uses less digits than its factorization.

6597997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 399 counting only the distinct ones).

The product of its digits is 1071630, while the sum is 52.

The square root of 6597997 is about 2568.6566528051. The cubic root of 6597997 is about 187.5587679489.

The spelling of 6597997 in words is "six million, five hundred ninety-seven thousand, nine hundred ninety-seven".