238960217 has 2 divisors, whose sum is σ = 238960218. Its totient is φ = 238960216.

The previous prime is 238960213. The next prime is 238960219. The reversal of 238960217 is 712069832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200817241 + 38142976 = 14171^2 + 6176^2 .

It is a cyclic number.

It is not a de Polignac number, because 238960217 - 2² = 238960213 is a prime.

Together with 238960219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238960213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119480108 + 119480109.

It is an arithmetic number, because the mean of its divisors is an integer number (119480109).

Almost surely, 2^238960217 is an apocalyptic number.

It is an amenable number.

238960217 is a deficient number, since it is larger than the sum of its proper divisors (1).

238960217 is an equidigital number, since it uses as much as digits as its factorization.

238960217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 238960217 is about 15458.3381060190. The cubic root of 238960217 is about 620.5477443559.

The spelling of 238960217 in words is "two hundred thirty-eight million, nine hundred sixty thousand, two hundred seventeen".