6838939 has 4 divisors (see below), whose sum is σ = 6888280. Its totient is φ = 6789600.

The previous prime is 6838927. The next prime is 6838943. The reversal of 6838939 is 9398386.

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 6838939 - 2²¹ = 4741787 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6838919) 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, 24462 + ... + 24739.

It is an arithmetic number, because the mean of its divisors is an integer number (1722070).

Almost surely, 2^6838939 is an apocalyptic number.

6838939 is a deficient number, since it is larger than the sum of its proper divisors (49341).

6838939 is a wasteful number, since it uses less digits than its factorization.

6838939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49340.

The product of its digits is 279936, while the sum is 46.

The square root of 6838939 is about 2615.1365165130. The cubic root of 6838939 is about 189.8145836585.

It can be divided in two parts, 6838 and 939, that added together give a palindrome (7777).

The spelling of 6838939 in words is "six million, eight hundred thirty-eight thousand, nine hundred thirty-nine".