838433117 has 2 divisors, whose sum is σ = 838433118. Its totient is φ = 838433116.

The previous prime is 838433077. The next prime is 838433119. The reversal of 838433117 is 711334838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648517156 + 189915961 = 25466^2 + 13781^2 .

It is a cyclic number.

It is not a de Polignac number, because 838433117 - 2¹² = 838429021 is a prime.

Together with 838433119, 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 (838433119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419216558 + 419216559.

It is an arithmetic number, because the mean of its divisors is an integer number (419216559).

Almost surely, 2^838433117 is an apocalyptic number.

It is an amenable number.

838433117 is a deficient number, since it is larger than the sum of its proper divisors (1).

838433117 is an equidigital number, since it uses as much as digits as its factorization.

838433117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 838433117 is about 28955.7095751425. The cubic root of 838433117 is about 942.9517583250.

The spelling of 838433117 in words is "eight hundred thirty-eight million, four hundred thirty-three thousand, one hundred seventeen".