3221065 has 8 divisors (see below), whose sum is σ = 3900168. Its totient is φ = 2553600.

The previous prime is 3221063. The next prime is 3221069. The reversal of 3221065 is 5601223.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 112896 + 3108169 = 336^2 + 1763^2 .

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

It is not a de Polignac number, because 3221065 - 2¹ = 3221063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2286 + ... + 3415.

It is an arithmetic number, because the mean of its divisors is an integer number (487521).

Almost surely, 2^3221065 is an apocalyptic number.

It is an amenable number.

3221065 is a deficient number, since it is larger than the sum of its proper divisors (679103).

3221065 is a wasteful number, since it uses less digits than its factorization.

3221065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 3221065 is about 1794.7325706077. The cubic root of 3221065 is about 147.6839035251.

Adding to 3221065 its reverse (5601223), we get a palindrome (8822288).

The spelling of 3221065 in words is "three million, two hundred twenty-one thousand, sixty-five".