2223943 has 2 divisors, whose sum is σ = 2223944. Its totient is φ = 2223942.

The previous prime is 2223937. The next prime is 2223967. The reversal of 2223943 is 3493222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2223943 - 2⁵ = 2223911 is a prime.

It is a d-powerful number, because it can be written as 2 + 2³ + 2²¹ + 3⁷ + 9 + 4⁸ + 3¹⁰ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223973) 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, 1111971 + 1111972.

It is an arithmetic number, because the mean of its divisors is an integer number (1111972).

2^2223943 is an apocalyptic number.

2223943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223943 is an equidigital number, since it uses as much as digits as its factorization.

2223943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 25.

The square root of 2223943 is about 1491.2890397237. The cubic root of 2223943 is about 130.5292624347.

The spelling of 2223943 in words is "two million, two hundred twenty-three thousand, nine hundred forty-three".