622243 has 2 divisors, whose sum is σ = 622244.
Its totient is φ = 622242.
The previous prime is 622241. The next prime is 622247. The reversal of 622243 is 342226.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 622243 - 21 = 622241 is a prime.
Together with 622241, it forms a pair of twin primes.
It is a self number, because there is not a number n which added to its sum of digits gives 622243.
It is not a weakly prime, because it can be changed into another prime (622241) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311121 + 311122.
It is an arithmetic number, because the mean of its divisors is an integer number (311122).
2622243 is an apocalyptic number.
622243 is a deficient number, since it is larger than the sum of its proper divisors (1).
622243 is an equidigital number, since it uses as much as digits as its factorization.
622243 is an evil number, because the sum of its binary digits is even.
The product of its digits is 576, while the sum is 19.
The square root of 622243 is about 788.8238079571.
The cubic root of 622243 is about 85.3728945930.
Adding to 622243 its reverse (342226), we get a palindrome (964469).
It can be divided in two parts, 6222 and 43, that multiplied together give a triangular number (267546 = T731).
The spelling of 622243 in words is "six hundred twenty-two thousand, two hundred forty-three".