223321589 has 2 divisors, whose sum is σ = 223321590. Its totient is φ = 223321588.

The previous prime is 223321541. The next prime is 223321591. The reversal of 223321589 is 985123322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155127025 + 68194564 = 12455^2 + 8258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223321589 is a prime.

It is a super-2 number, since 2×223321589² = 99745064226969842, which contains 22 as substring.

Together with 223321591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223320589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111660794 + 111660795.

It is an arithmetic number, because the mean of its divisors is an integer number (111660795).

Almost surely, 2^223321589 is an apocalyptic number.

It is an amenable number.

223321589 is a deficient number, since it is larger than the sum of its proper divisors (1).

223321589 is an equidigital number, since it uses as much as digits as its factorization.

223321589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 223321589 is about 14943.9482400067. The cubic root of 223321589 is about 606.7040626561.

The spelling of 223321589 in words is "two hundred twenty-three million, three hundred twenty-one thousand, five hundred eighty-nine".