838318799 has 2 divisors, whose sum is σ = 838318800. Its totient is φ = 838318798.

The previous prime is 838318757. The next prime is 838318801. The reversal of 838318799 is 997813838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 838318799 - 2²⁴ = 821541583 is a prime.

Together with 838318801, 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 (838318199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419159399 + 419159400.

It is an arithmetic number, because the mean of its divisors is an integer number (419159400).

Almost surely, 2^838318799 is an apocalyptic number.

838318799 is a deficient number, since it is larger than the sum of its proper divisors (1).

838318799 is an equidigital number, since it uses as much as digits as its factorization.

838318799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 56.

The square root of 838318799 is about 28953.7354930240. The cubic root of 838318799 is about 942.9089001027.

The spelling of 838318799 in words is "eight hundred thirty-eight million, three hundred eighteen thousand, seven hundred ninety-nine".