838163243 has 2 divisors, whose sum is σ = 838163244. Its totient is φ = 838163242.

The previous prime is 838163197. The next prime is 838163273. The reversal of 838163243 is 342361838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 838163243 - 2²⁶ = 771054379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 838163197 and 838163206.

It is not a weakly prime, because it can be changed into another prime (838163273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419081621 + 419081622.

It is an arithmetic number, because the mean of its divisors is an integer number (419081622).

Almost surely, 2^838163243 is an apocalyptic number.

838163243 is a deficient number, since it is larger than the sum of its proper divisors (1).

838163243 is an equidigital number, since it uses as much as digits as its factorization.

838163243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The square root of 838163243 is about 28951.0490828916. The cubic root of 838163243 is about 942.8505753500.

The spelling of 838163243 in words is "eight hundred thirty-eight million, one hundred sixty-three thousand, two hundred forty-three".