3221269 has 2 divisors, whose sum is σ = 3221270. Its totient is φ = 3221268.

The previous prime is 3221261. The next prime is 3221297. The reversal of 3221269 is 9621223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 580644 = 1625^2 + 762^2 .

It is an emirp because it is prime and its reverse (9621223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3221269 - 2³ = 3221261 is a prime.

It is a super-2 number, since 2×3221269² = 20753147940722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁹ + 2¹¹ + 2¹⁹ + 1 + 2²¹ + 6⁶ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610634 + 1610635.

It is an arithmetic number, because the mean of its divisors is an integer number (1610635).

Almost surely, 2^3221269 is an apocalyptic number.

It is an amenable number.

3221269 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221269 is an equidigital number, since it uses as much as digits as its factorization.

3221269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 3221269 is about 1794.7894026877. The cubic root of 3221269 is about 147.6870212186.

The spelling of 3221269 in words is "three million, two hundred twenty-one thousand, two hundred sixty-nine".