223238417 has 2 divisors, whose sum is σ = 223238418. Its totient is φ = 223238416.

The previous prime is 223238371. The next prime is 223238447. The reversal of 223238417 is 714832322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222636241 + 602176 = 14921^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 223238417 - 2¹⁰ = 223237393 is a prime.

It is a super-3 number, since 3×223238417³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223238447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111619208 + 111619209.

It is an arithmetic number, because the mean of its divisors is an integer number (111619209).

Almost surely, 2^223238417 is an apocalyptic number.

It is an amenable number.

223238417 is a deficient number, since it is larger than the sum of its proper divisors (1).

223238417 is an equidigital number, since it uses as much as digits as its factorization.

223238417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 223238417 is about 14941.1651821402. The cubic root of 223238417 is about 606.6287347307.

The spelling of 223238417 in words is "two hundred twenty-three million, two hundred thirty-eight thousand, four hundred seventeen".