838323799 has 2 divisors, whose sum is σ = 838323800. Its totient is φ = 838323798.

The previous prime is 838323781. The next prime is 838323853. The reversal of 838323799 is 997323838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838323799 - 2¹⁹ = 837799511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838323769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419161899 + 419161900.

It is an arithmetic number, because the mean of its divisors is an integer number (419161900).

Almost surely, 2^838323799 is an apocalyptic number.

838323799 is a deficient number, since it is larger than the sum of its proper divisors (1).

838323799 is an equidigital number, since it uses as much as digits as its factorization.

838323799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 52.

The square root of 838323799 is about 28953.8218375399. The cubic root of 838323799 is about 942.9107747019.

The spelling of 838323799 in words is "eight hundred thirty-eight million, three hundred twenty-three thousand, seven hundred ninety-nine".