6564897 has 12 divisors (see below), whose sum is σ = 9528064. Its totient is φ = 4355640.

The previous prime is 6564847. The next prime is 6564917. The reversal of 6564897 is 7984656.

6564897 is a `hidden beast` number, since 6 + 564 + 89 + 7 = 666.

It is not a de Polignac number, because 6564897 - 2⁷ = 6564769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6564827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372 + ... + 3642.

Almost surely, 2^6564897 is an apocalyptic number.

It is an amenable number.

6564897 is a deficient number, since it is larger than the sum of its proper divisors (2963167).

6564897 is a wasteful number, since it uses less digits than its factorization.

6564897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500 (or 3497 counting only the distinct ones).

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

The square root of 6564897 is about 2562.2054952716. The cubic root of 6564897 is about 187.2446016068.

The spelling of 6564897 in words is "six million, five hundred sixty-four thousand, eight hundred ninety-seven".