3378221 has 16 divisors (see below), whose sum is σ = 4276608. Its totient is φ = 2592000.

The previous prime is 3378203. The next prime is 3378229. The reversal of 3378221 is 1228733.

3378221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3378221 - 2⁶ = 3378157 is a prime.

It is a super-2 number, since 2×3378221² = 22824754249682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3378229) 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 15 ways as a sum of consecutive naturals, for example, 5321 + ... + 5921.

It is an arithmetic number, because the mean of its divisors is an integer number (267288).

Almost surely, 2^3378221 is an apocalyptic number.

It is an amenable number.

3378221 is a deficient number, since it is larger than the sum of its proper divisors (898387).

3378221 is a wasteful number, since it uses less digits than its factorization.

3378221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its digits is 2016, while the sum is 26.

The square root of 3378221 is about 1837.9937431885. The cubic root of 3378221 is about 150.0477033462.

It can be divided in two parts, 337 and 8221, that added together give a palindrome (8558).

The spelling of 3378221 in words is "three million, three hundred seventy-eight thousand, two hundred twenty-one".