2218343 has 2 divisors, whose sum is σ = 2218344. Its totient is φ = 2218342.

The previous prime is 2218339. The next prime is 2218351. The reversal of 2218343 is 3438122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2218343 - 2² = 2218339 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2218943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109171 + 1109172.

It is an arithmetic number, because the mean of its divisors is an integer number (1109172).

2^2218343 is an apocalyptic number.

2218343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218343 is an equidigital number, since it uses as much as digits as its factorization.

2218343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 2218343 is about 1489.4102859857. The cubic root of 2218343 is about 130.4196106040.

The spelling of 2218343 in words is "two million, two hundred eighteen thousand, three hundred forty-three".