4066564 has 6 divisors (see below), whose sum is σ = 7116494. Its totient is φ = 2033280.

The previous prime is 4066537. The next prime is 4066567. The reversal of 4066564 is 4656604.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 66564 = 2000^2 + 258^2 .

It is not an unprimeable number, because it can be changed into a prime (4066567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508317 + ... + 508324.

Almost surely, 2^4066564 is an apocalyptic number.

It is an amenable number.

4066564 is a deficient number, since it is larger than the sum of its proper divisors (3049930).

4066564 is a wasteful number, since it uses less digits than its factorization.

4066564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016645 (or 1016643 counting only the distinct ones).

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

The square root of 4066564 is about 2016.5723393918. The cubic root of 4066564 is about 159.6157969134.

The spelling of 4066564 in words is "four million, sixty-six thousand, five hundred sixty-four".