230389 has 2 divisors, whose sum is σ = 230390. Its totient is φ = 230388.

The previous prime is 230387. The next prime is 230393. The reversal of 230389 is 983032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202500 + 27889 = 450^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 230389 - 2¹ = 230387 is a prime.

Together with 230387, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115194 + 115195.

It is an arithmetic number, because the mean of its divisors is an integer number (115195).

2²³⁰³⁸⁹ is an apocalyptic number.

It is an amenable number.

230389 is a deficient number, since it is larger than the sum of its proper divisors (1).

230389 is an equidigital number, since it uses as much as digits as its factorization.

230389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 230389 is about 479.9885415299. The cubic root of 230389 is about 61.3037789505.

The spelling of 230389 in words is "two hundred thirty thousand, three hundred eighty-nine".