4065564 has 24 divisors (see below), whose sum is σ = 9708160. Its totient is φ = 1323504.

The previous prime is 4065541. The next prime is 4065569. The reversal of 4065564 is 4655604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065569) 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, 3424 + ... + 4455.

Almost surely, 2^4065564 is an apocalyptic number.

It is an amenable number.

4065564 is an abundant number, since it is smaller than the sum of its proper divisors (5642596).

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

4065564 is a wasteful number, since it uses less digits than its factorization.

4065564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929 (or 7927 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 4065564 is about 2016.3243786653. The cubic root of 4065564 is about 159.6027122484.

The spelling of 4065564 in words is "four million, sixty-five thousand, five hundred sixty-four".