6564972 has 24 divisors (see below), whose sum is σ = 15391600. Its totient is φ = 2177856.

The previous prime is 6564967. The next prime is 6564973. The reversal of 6564972 is 2794656.

It is a self number, because there is not a number n which added to its sum of digits gives 6564972.

It is not an unprimeable number, because it can be changed into a prime (6564973) 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, 1554 + ... + 3942.

Almost surely, 2^6564972 is an apocalyptic number.

It is an amenable number.

6564972 is an abundant number, since it is smaller than the sum of its proper divisors (8826628).

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

6564972 is a wasteful number, since it uses less digits than its factorization.

6564972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625 (or 2623 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 6564972 is about 2562.2201310582. The cubic root of 6564972 is about 187.2453146564.

The spelling of 6564972 in words is "six million, five hundred sixty-four thousand, nine hundred seventy-two".