838769 has 2 divisors, whose sum is σ = 838770. Its totient is φ = 838768.

The previous prime is 838757. The next prime is 838771. The reversal of 838769 is 967838.

838769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600625 + 238144 = 775^2 + 488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838769 is a prime.

It is a super-2 number, since 2×838769² = 1407066870722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 838771, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (838069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419384 + 419385.

It is an arithmetic number, because the mean of its divisors is an integer number (419385).

2⁸³⁸⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

838769 is a deficient number, since it is larger than the sum of its proper divisors (1).

838769 is an equidigital number, since it uses as much as digits as its factorization.

838769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 838769 is about 915.8433272127. The cubic root of 838769 is about 94.3077659515.

The spelling of 838769 in words is "eight hundred thirty-eight thousand, seven hundred sixty-nine".