238789 has 2 divisors, whose sum is σ = 238790. Its totient is φ = 238788.

The previous prime is 238781. The next prime is 238801. The reversal of 238789 is 987832.

238789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172225 + 66564 = 415^2 + 258^2 .

It is a cyclic number.

It is not a de Polignac number, because 238789 - 2³ = 238781 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁶ + 3¹¹ + 7⁴ + 8² + 8² + 9⁵ .

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 (238781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119394 + 119395.

It is an arithmetic number, because the mean of its divisors is an integer number (119395).

2²³⁸⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

238789 is a deficient number, since it is larger than the sum of its proper divisors (1).

238789 is an equidigital number, since it uses as much as digits as its factorization.

238789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 238789 is about 488.6604137845. The cubic root of 238789 is about 62.0399499723.

The spelling of 238789 in words is "two hundred thirty-eight thousand, seven hundred eighty-nine".