3221423 has 2 divisors, whose sum is σ = 3221424. Its totient is φ = 3221422.

The previous prime is 3221419. The next prime is 3221429. The reversal of 3221423 is 3241223.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3221423 - 2² = 3221419 is a prime.

It is a super-2 number, since 2×3221423² = 20755132289858, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3¹³ + 2² + 2¹⁴ + 1 + 4 + 2¹⁴ + 3¹³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610711 + 1610712.

It is an arithmetic number, because the mean of its divisors is an integer number (1610712).

Almost surely, 2^3221423 is an apocalyptic number.

3221423 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221423 is an equidigital number, since it uses as much as digits as its factorization.

3221423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 17.

The square root of 3221423 is about 1794.8323041443. The cubic root of 3221423 is about 147.6893746844.

Adding to 3221423 its reverse (3241223), we get a palindrome (6462646).

The spelling of 3221423 in words is "three million, two hundred twenty-one thousand, four hundred twenty-three".