222389 has 2 divisors, whose sum is σ = 222390. Its totient is φ = 222388.

The previous prime is 222379. The next prime is 222403. The reversal of 222389 is 983222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168100 + 54289 = 410^2 + 233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222389 is a prime.

It is a Chen prime.

It is an Ulam 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 (222329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111194 + 111195.

It is an arithmetic number, because the mean of its divisors is an integer number (111195).

2²²²³⁸⁹ is an apocalyptic number.

It is an amenable number.

222389 is a deficient number, since it is larger than the sum of its proper divisors (1).

222389 is an equidigital number, since it uses as much as digits as its factorization.

222389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 222389 is about 471.5813821601. The cubic root of 222389 is about 60.5858354053.

The spelling of 222389 in words is "two hundred twenty-two thousand, three hundred eighty-nine".