3804565 has 4 divisors (see below), whose sum is σ = 4565484. Its totient is φ = 3043648.

The previous prime is 3804553. The next prime is 3804587. The reversal of 3804565 is 5654083.

3804565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2961841 + 842724 = 1721^2 + 918^2 .

It is a cyclic number.

It is not a de Polignac number, because 3804565 - 2⁵ = 3804533 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380452 + ... + 380461.

It is an arithmetic number, because the mean of its divisors is an integer number (1141371).

Almost surely, 2^3804565 is an apocalyptic number.

It is an amenable number.

3804565 is a deficient number, since it is larger than the sum of its proper divisors (760919).

3804565 is an equidigital number, since it uses as much as digits as its factorization.

3804565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760918.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 3804565 is about 1950.5294153127. The cubic root of 3804565 is about 156.1115381374. Note that the first 3 decimals are identical.

The spelling of 3804565 in words is "three million, eight hundred four thousand, five hundred sixty-five".