3221441 has 2 divisors, whose sum is σ = 3221442. Its totient is φ = 3221440.

The previous prime is 3221437. The next prime is 3221443. The reversal of 3221441 is 1441223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2337841 + 883600 = 1529^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221441 - 2² = 3221437 is a prime.

It is a super-4 number, since 4×3221441⁴ (a number of 27 digits) contains 4444 as substring.

It is a Sophie Germain prime.

Together with 3221443, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3221443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610720 + 1610721.

It is an arithmetic number, because the mean of its divisors is an integer number (1610721).

Almost surely, 2^3221441 is an apocalyptic number.

It is an amenable number.

3221441 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221441 is an equidigital number, since it uses as much as digits as its factorization.

3221441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 17.

The square root of 3221441 is about 1794.8373185334. The cubic root of 3221441 is about 147.6896497599.

Adding to 3221441 its reverse (1441223), we get a palindrome (4662664).

The spelling of 3221441 in words is "three million, two hundred twenty-one thousand, four hundred forty-one".