6564216 has 32 divisors (see below), whose sum is σ = 16473600. Its totient is φ = 2179680.

The previous prime is 6564211. The next prime is 6564241. The reversal of 6564216 is 6124656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6564211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11211 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (514800).

Almost surely, 2^6564216 is an apocalyptic number.

It is an amenable number.

6564216 is an abundant number, since it is smaller than the sum of its proper divisors (9909384).

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

6564216 is a wasteful number, since it uses less digits than its factorization.

6564216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1055 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 6564216 is about 2562.0725985030. The cubic root of 6564216 is about 187.2381268679.

The spelling of 6564216 in words is "six million, five hundred sixty-four thousand, two hundred sixteen".