838939 has 2 divisors, whose sum is σ = 838940. Its totient is φ = 838938.

The previous prime is 838931. The next prime is 838949. The reversal of 838939 is 939838.

838939 is nontrivially palindromic in base 3.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838939 - 2³ = 838931 is a prime.

It is not a weakly prime, because it can be changed into another prime (838931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419469 + 419470.

It is an arithmetic number, because the mean of its divisors is an integer number (419470).

2⁸³⁸⁹³⁹ is an apocalyptic number.

838939 is a deficient number, since it is larger than the sum of its proper divisors (1).

838939 is an equidigital number, since it uses as much as digits as its factorization.

838939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 838939 is about 915.9361331447. The cubic root of 838939 is about 94.3141368900.

The spelling of 838939 in words is "eight hundred thirty-eight thousand, nine hundred thirty-nine".