238279199 has 2 divisors, whose sum is σ = 238279200. Its totient is φ = 238279198.

The previous prime is 238279177. The next prime is 238279201. The reversal of 238279199 is 991972832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238279199 - 2¹⁶ = 238213663 is a prime.

Together with 238279201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238279169) 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, 119139599 + 119139600.

It is an arithmetic number, because the mean of its divisors is an integer number (119139600).

Almost surely, 2^238279199 is an apocalyptic number.

238279199 is a deficient number, since it is larger than the sum of its proper divisors (1).

238279199 is an equidigital number, since it uses as much as digits as its factorization.

238279199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 50.

The square root of 238279199 is about 15436.2948598425. The cubic root of 238279199 is about 619.9576792133.

The spelling of 238279199 in words is "two hundred thirty-eight million, two hundred seventy-nine thousand, one hundred ninety-nine".