238919 has 2 divisors, whose sum is σ = 238920. Its totient is φ = 238918.

The previous prime is 238897. The next prime is 238921. The reversal of 238919 is 919832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238919 is a prime.

It is a super-2 number, since 2×238919² = 114164577122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 238921, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119459 + 119460.

It is an arithmetic number, because the mean of its divisors is an integer number (119460).

2²³⁸⁹¹⁹ is an apocalyptic number.

238919 is a deficient number, since it is larger than the sum of its proper divisors (1).

238919 is an equidigital number, since it uses as much as digits as its factorization.

238919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 238919 is about 488.7934123942. The cubic root of 238919 is about 62.0512063958.

The spelling of 238919 in words is "two hundred thirty-eight thousand, nine hundred nineteen".