838344939 has 4 divisors (see below), whose sum is σ = 1117793256. Its totient is φ = 558896624.

The previous prime is 838344931. The next prime is 838344943. The reversal of 838344939 is 939443838.

838344939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 838344939 - 2³ = 838344931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 838344891 and 838344900.

It is not an unprimeable number, because it can be changed into a prime (838344931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139724154 + ... + 139724159.

It is an arithmetic number, because the mean of its divisors is an integer number (279448314).

Almost surely, 2^838344939 is an apocalyptic number.

838344939 is a deficient number, since it is larger than the sum of its proper divisors (279448317).

838344939 is a wasteful number, since it uses less digits than its factorization.

838344939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279448316.

The product of its digits is 2239488, while the sum is 51.

The square root of 838344939 is about 28954.1868993070. The cubic root of 838344939 is about 942.9187004247.

The spelling of 838344939 in words is "eight hundred thirty-eight million, three hundred forty-four thousand, nine hundred thirty-nine".