3318223 has 2 divisors, whose sum is σ = 3318224. Its totient is φ = 3318222.

The previous prime is 3318221. The next prime is 3318229. The reversal of 3318223 is 3228133.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3318223 - 2¹ = 3318221 is a prime.

It is a super-2 number, since 2×3318223² = 22021207755458, which contains 22 as substring.

Together with 3318221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3318194 and 3318203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3318221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1659111 + 1659112.

It is an arithmetic number, because the mean of its divisors is an integer number (1659112).

Almost surely, 2^3318223 is an apocalyptic number.

3318223 is a deficient number, since it is larger than the sum of its proper divisors (1).

3318223 is an equidigital number, since it uses as much as digits as its factorization.

3318223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 3318223 is about 1821.5990228368. The cubic root of 3318223 is about 149.1540978906.

The spelling of 3318223 in words is "three million, three hundred eighteen thousand, two hundred twenty-three".