238423 has 2 divisors, whose sum is σ = 238424. Its totient is φ = 238422.

The previous prime is 238417. The next prime is 238439. The reversal of 238423 is 324832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238423 - 2⁹ = 237911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238394 and 238403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238463) 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, 119211 + 119212.

It is an arithmetic number, because the mean of its divisors is an integer number (119212).

2²³⁸⁴²³ is an apocalyptic number.

238423 is a deficient number, since it is larger than the sum of its proper divisors (1).

238423 is an equidigital number, since it uses as much as digits as its factorization.

238423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 238423 is about 488.2857769790. The cubic root of 238423 is about 62.0082368522.

The spelling of 238423 in words is "two hundred thirty-eight thousand, four hundred twenty-three".