238397 has 2 divisors, whose sum is σ = 238398. Its totient is φ = 238396.

The previous prime is 238373. The next prime is 238417. The reversal of 238397 is 793832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148996 + 89401 = 386^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 238397 - 2⁸ = 238141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238307) 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, 119198 + 119199.

It is an arithmetic number, because the mean of its divisors is an integer number (119199).

2²³⁸³⁹⁷ is an apocalyptic number.

It is an amenable number.

238397 is a deficient number, since it is larger than the sum of its proper divisors (1).

238397 is an equidigital number, since it uses as much as digits as its factorization.

238397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 238397 is about 488.2591525000. The cubic root of 238397 is about 62.0059827733.

It can be divided in two parts, 23 and 8397, that multiplied together give a triangular number (193131 = T₆₂₁).

The spelling of 238397 in words is "two hundred thirty-eight thousand, three hundred ninety-seven".