223273217 has 2 divisors, whose sum is σ = 223273218. Its totient is φ = 223273216.

The previous prime is 223273187. The next prime is 223273247. The reversal of 223273217 is 712372322.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (223273187) and next prime (223273247).

It can be written as a sum of positive squares in only one way, i.e., 221533456 + 1739761 = 14884^2 + 1319^2 .

It is a cyclic number.

It is not a de Polignac number, because 223273217 - 2⁸ = 223272961 is a prime.

It is a super-3 number, since 3×223273217³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223273217.

It is not a weakly prime, because it can be changed into another prime (223273247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111636608 + 111636609.

It is an arithmetic number, because the mean of its divisors is an integer number (111636609).

Almost surely, 2^223273217 is an apocalyptic number.

It is an amenable number.

223273217 is a deficient number, since it is larger than the sum of its proper divisors (1).

223273217 is an equidigital number, since it uses as much as digits as its factorization.

223273217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 29.

The square root of 223273217 is about 14942.3297045675. The cubic root of 223273217 is about 606.6602549672.

The spelling of 223273217 in words is "two hundred twenty-three million, two hundred seventy-three thousand, two hundred seventeen".