3289221 has 16 divisors (see below), whose sum is σ = 5248320. Its totient is φ = 2023920.

The previous prime is 3289171. The next prime is 3289229. The reversal of 3289221 is 1229823.

It is a happy number.

It is not a de Polignac number, because 3289221 - 2¹⁴ = 3272837 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3289229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4335 + ... + 5036.

It is an arithmetic number, because the mean of its divisors is an integer number (328020).

Almost surely, 2^3289221 is an apocalyptic number.

It is an amenable number.

3289221 is a deficient number, since it is larger than the sum of its proper divisors (1959099).

3289221 is a wasteful number, since it uses less digits than its factorization.

3289221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9393 (or 9387 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3289221 is about 1813.6209637077. The cubic root of 3289221 is about 148.7182791386.

It can be divided in two parts, 32 and 89221, that added together give a triangular number (89253 = T₄₂₂).

The spelling of 3289221 in words is "three million, two hundred eighty-nine thousand, two hundred twenty-one".