223589 has 2 divisors, whose sum is σ = 223590.
Its totient is φ = 223588.
The previous prime is 223577. The next prime is 223621. The reversal of 223589 is 985322.
223589 = 2722 + 2732 + 2742.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 187489 + 36100 = 433^2 + 190^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-223589 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a plaindrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (223529) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111794 + 111795.
It is an arithmetic number, because the mean of its divisors is an integer number (111795).
2223589 is an apocalyptic number.
It is an amenable number.
223589 is a deficient number, since it is larger than the sum of its proper divisors (1).
223589 is an equidigital number, since it uses as much as digits as its factorization.
223589 is an evil number, because the sum of its binary digits is even.
The product of its digits is 4320, while the sum is 29.
The square root of 223589 is about 472.8519852977.
The cubic root of 223589 is about 60.6946127067.
The spelling of 223589 in words is "two hundred twenty-three thousand, five hundred eighty-nine".