838368939 has 16 divisors (see below), whose sum is σ = 1201697280. Its totient is φ = 518228640.

The previous prime is 838368931. The next prime is 838368959. The reversal of 838368939 is 939863838.

It is not a de Polignac number, because 838368939 - 2³ = 838368931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (838368931) 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 in 15 ways as a sum of consecutive naturals, for example, 153792 + ... + 159149.

It is an arithmetic number, because the mean of its divisors is an integer number (75106080).

Almost surely, 2^838368939 is an apocalyptic number.

838368939 is a deficient number, since it is larger than the sum of its proper divisors (363328341).

838368939 is a wasteful number, since it uses less digits than its factorization.

838368939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313010.

The product of its digits is 6718464, while the sum is 57.

The square root of 838368939 is about 28954.6013441733. The cubic root of 838368939 is about 942.9276982456.

The spelling of 838368939 in words is "eight hundred thirty-eight million, three hundred sixty-eight thousand, nine hundred thirty-nine".