6321223 has 2 divisors, whose sum is σ = 6321224. Its totient is φ = 6321222.

The previous prime is 6321221. The next prime is 6321253. The reversal of 6321223 is 3221236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6321223 - 2¹ = 6321221 is a prime.

Together with 6321221, it forms a pair of twin primes.

6321223 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6321223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6321221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160611 + 3160612.

It is an arithmetic number, because the mean of its divisors is an integer number (3160612).

Almost surely, 2^6321223 is an apocalyptic number.

6321223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321223 is an equidigital number, since it uses as much as digits as its factorization.

6321223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 6321223 is about 2514.2042478685. The cubic root of 6321223 is about 184.8986345112.

Adding to 6321223 its reverse (3221236), we get a palindrome (9542459).

The spelling of 6321223 in words is "six million, three hundred twenty-one thousand, two hundred twenty-three".