2818223 has 2 divisors, whose sum is σ = 2818224. Its totient is φ = 2818222.

The previous prime is 2818219. The next prime is 2818229. The reversal of 2818223 is 3228182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2818223 - 2² = 2818219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2818192 and 2818201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2818229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409111 + 1409112.

It is an arithmetic number, because the mean of its divisors is an integer number (1409112).

2^2818223 is an apocalyptic number.

2818223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2818223 is an equidigital number, since it uses as much as digits as its factorization.

2818223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 26.

The square root of 2818223 is about 1678.7563849469. The cubic root of 2818223 is about 141.2510825615.

The spelling of 2818223 in words is "two million, eight hundred eighteen thousand, two hundred twenty-three".