6604564 has 12 divisors (see below), whose sum is σ = 11586484. Its totient is φ = 3294144.

The previous prime is 6604561. The next prime is 6604573. The reversal of 6604564 is 4654066.

It can be written as a sum of positive squares in 2 ways, for example, as 2160900 + 4443664 = 1470^2 + 2108^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6604561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22 + ... + 3634.

Almost surely, 2^6604564 is an apocalyptic number.

It is an amenable number.

6604564 is a deficient number, since it is larger than the sum of its proper divisors (4981920).

6604564 is a wasteful number, since it uses less digits than its factorization.

6604564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 6604564 is about 2569.9346295188. The cubic root of 6604564 is about 187.6209731917.

The spelling of 6604564 in words is "six million, six hundred four thousand, five hundred sixty-four".