3288221 has 4 divisors (see below), whose sum is σ = 3293472. Its totient is φ = 3282972.

The previous prime is 3288209. The next prime is 3288269. The reversal of 3288221 is 1228823.

3288221 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1228823 = 89 ⋅13807.

It is a cyclic number.

It is not a de Polignac number, because 3288221 - 2¹⁸ = 3026077 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 (3288721) 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 3 ways as a sum of consecutive naturals, for example, 1535 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (823368).

Almost surely, 2^3288221 is an apocalyptic number.

It is an amenable number.

3288221 is a deficient number, since it is larger than the sum of its proper divisors (5251).

3288221 is an equidigital number, since it uses as much as digits as its factorization.

3288221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5250.

The product of its digits is 1536, while the sum is 26.

The square root of 3288221 is about 1813.3452511863. The cubic root of 3288221 is about 148.7032063344.

It can be divided in two parts, 328822 and 1, that added together give a palindrome (328823).

The spelling of 3288221 in words is "three million, two hundred eighty-eight thousand, two hundred twenty-one".