6497568 has 144 divisors (see below), whose sum is σ = 23115456. Its totient is φ = 1681920.

The previous prime is 6497539. The next prime is 6497581. The reversal of 6497568 is 8657946.

It is a tau number, because it is divible by the number of its divisors (144).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22030 + ... + 22322.

It is an arithmetic number, because the mean of its divisors is an integer number (160524).

Almost surely, 2^6497568 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 6497568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11557728).

6497568 is an abundant number, since it is smaller than the sum of its proper divisors (16617888).

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

6497568 is a wasteful number, since it uses less digits than its factorization.

6497568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 316 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 6497568 is about 2549.0327577338. The cubic root of 6497568 is about 186.6022793806.

The spelling of 6497568 in words is "six million, four hundred ninety-seven thousand, five hundred sixty-eight".