3204805 has 8 divisors (see below), whose sum is σ = 3861144. Its totient is φ = 2553600.

The previous prime is 3204791. The next prime is 3204809. The reversal of 3204805 is 5084023.

3204805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 638401 + 2566404 = 799^2 + 1602^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3204805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3204809) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 265 + ... + 2545.

It is an arithmetic number, because the mean of its divisors is an integer number (482643).

Almost surely, 2^3204805 is an apocalyptic number.

It is an amenable number.

3204805 is a deficient number, since it is larger than the sum of its proper divisors (656339).

3204805 is a wasteful number, since it uses less digits than its factorization.

3204805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3204805 is about 1790.1969165430. The cubic root of 3204805 is about 147.4349804399.

Adding to 3204805 its reverse (5084023), we get a palindrome (8288828).

It can be divided in two parts, 320 and 4805, that multiplied together give a square (1537600 = 1240²).

The spelling of 3204805 in words is "three million, two hundred four thousand, eight hundred five".