338791 has 2 divisors, whose sum is σ = 338792. Its totient is φ = 338790.

The previous prime is 338777. The next prime is 338803. The reversal of 338791 is 197833.

338791 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 338791 - 2⁹ = 338279 is a prime.

It is a super-2 number, since 2×338791² = 229558683362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338731) 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, 169395 + 169396.

It is an arithmetic number, because the mean of its divisors is an integer number (169396).

2³³⁸⁷⁹¹ is an apocalyptic number.

338791 is a deficient number, since it is larger than the sum of its proper divisors (1).

338791 is an equidigital number, since it uses as much as digits as its factorization.

338791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 338791 is about 582.0575572914. The cubic root of 338791 is about 69.7124942351.

The spelling of 338791 in words is "three hundred thirty-eight thousand, seven hundred ninety-one".