8422243 has 2 divisors, whose sum is σ = 8422244. Its totient is φ = 8422242.

The previous prime is 8422241. The next prime is 8422247. The reversal of 8422243 is 3422248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8422243 - 2¹ = 8422241 is a prime.

Together with 8422241, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 8 + 4³ + 2 + 2¹⁵ + 2²³ + 4³ + 3⁶ .

It is not a weakly prime, because it can be changed into another prime (8422241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4211121 + 4211122.

It is an arithmetic number, because the mean of its divisors is an integer number (4211122).

Almost surely, 2^8422243 is an apocalyptic number.

8422243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8422243 is an equidigital number, since it uses as much as digits as its factorization.

8422243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 25.

The square root of 8422243 is about 2902.1100943968. The cubic root of 8422243 is about 203.4585394469.

The spelling of 8422243 in words is "eight million, four hundred twenty-two thousand, two hundred forty-three".