338256823 has 2 divisors, whose sum is σ = 338256824. Its totient is φ = 338256822.

The previous prime is 338256811. The next prime is 338256827. The reversal of 338256823 is 328652833.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 338256823 - 2⁹ = 338256311 is a prime.

It is a super-2 number, since 2×338256823² = 228835356612106658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338256827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169128411 + 169128412.

It is an arithmetic number, because the mean of its divisors is an integer number (169128412).

Almost surely, 2^338256823 is an apocalyptic number.

338256823 is a deficient number, since it is larger than the sum of its proper divisors (1).

338256823 is an equidigital number, since it uses as much as digits as its factorization.

338256823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 338256823 is about 18391.7596493647. The cubic root of 338256823 is about 696.7583603990.

The spelling of 338256823 in words is "three hundred thirty-eight million, two hundred fifty-six thousand, eight hundred twenty-three".