3279221 has 12 divisors (see below), whose sum is σ = 3697932. Its totient is φ = 2904000.

The previous prime is 3279209. The next prime is 3279251. The reversal of 3279221 is 1229723.

It can be written as a sum of positive squares in 2 ways, for example, as 1234321 + 2044900 = 1111^2 + 1430^2 .

It is not a de Polignac number, because 3279221 - 2¹⁴ = 3262837 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 (3279251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4631 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (308161).

Almost surely, 2^3279221 is an apocalyptic number.

It is an amenable number.

3279221 is a deficient number, since it is larger than the sum of its proper divisors (418711).

3279221 is a wasteful number, since it uses less digits than its factorization.

3279221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 713 counting only the distinct ones).

The product of its digits is 1512, while the sum is 26.

The square root of 3279221 is about 1810.8619494594. The cubic root of 3279221 is about 148.5674133794.

The spelling of 3279221 in words is "three million, two hundred seventy-nine thousand, two hundred twenty-one".