838194499 has 2 divisors, whose sum is σ = 838194500. Its totient is φ = 838194498.

The previous prime is 838194493. The next prime is 838194509. The reversal of 838194499 is 994491838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838194499 - 2³ = 838194491 is a prime.

It is a super-2 number, since 2×838194499² = 1405140036307722002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (838194491) 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, 419097249 + 419097250.

It is an arithmetic number, because the mean of its divisors is an integer number (419097250).

Almost surely, 2^838194499 is an apocalyptic number.

838194499 is a deficient number, since it is larger than the sum of its proper divisors (1).

838194499 is an equidigital number, since it uses as much as digits as its factorization.

838194499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 55.

The square root of 838194499 is about 28951.5888855862. The cubic root of 838194499 is about 942.8622951717.

The spelling of 838194499 in words is "eight hundred thirty-eight million, one hundred ninety-four thousand, four hundred ninety-nine".