3564644 has 6 divisors (see below), whose sum is σ = 6238134. Its totient is φ = 1782320.

The previous prime is 3564643. The next prime is 3564661. The reversal of 3564644 is 4464653.

It can be written as a sum of positive squares in only one way, i.e., 3564544 + 100 = 1888^2 + 10^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3564644.

It is not an unprimeable number, because it can be changed into a prime (3564643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445577 + ... + 445584.

It is an arithmetic number, because the mean of its divisors is an integer number (1039689).

Almost surely, 2^3564644 is an apocalyptic number.

It is an amenable number.

3564644 is a deficient number, since it is larger than the sum of its proper divisors (2673490).

3564644 is a wasteful number, since it uses less digits than its factorization.

3564644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891165 (or 891163 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

The square root of 3564644 is about 1888.0264828651. The cubic root of 3564644 is about 152.7585009238.

Subtracting 3564644 from its reverse (4464653), we obtain a palindrome (900009).

The spelling of 3564644 in words is "three million, five hundred sixty-four thousand, six hundred forty-four".