6397568 has 32 divisors (see below), whose sum is σ = 12868320. Its totient is φ = 3168000.

The previous prime is 6397553. The next prime is 6397571. The reversal of 6397568 is 8657936.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19163 + ... + 19493.

It is an arithmetic number, because the mean of its divisors is an integer number (402135).

Almost surely, 2^6397568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6397568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6434160).

6397568 is an abundant number, since it is smaller than the sum of its proper divisors (6470752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6397568 is a wasteful number, since it uses less digits than its factorization.

6397568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 484 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 6397568 is about 2529.3414162584. The cubic root of 6397568 is about 185.6400329816.

The spelling of 6397568 in words is "six million, three hundred ninety-seven thousand, five hundred sixty-eight".