3858564 has 12 divisors (see below), whose sum is σ = 9003344. Its totient is φ = 1286184.

The previous prime is 3858529. The next prime is 3858581. The reversal of 3858564 is 4658583.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×3858564² = 29777032284192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160762 + ... + 160785.

Almost surely, 2^3858564 is an apocalyptic number.

It is an amenable number.

3858564 is an abundant number, since it is smaller than the sum of its proper divisors (5144780).

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

3858564 is a wasteful number, since it uses less digits than its factorization.

3858564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321554 (or 321552 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 3858564 is about 1964.3227840658. The cubic root of 3858564 is about 156.8466459340.

The spelling of 3858564 in words is "three million, eight hundred fifty-eight thousand, five hundred sixty-four".