6839638 has 8 divisors (see below), whose sum is σ = 11048688. Its totient is φ = 3156744.

The previous prime is 6839629. The next prime is 6839659. The reversal of 6839638 is 8369386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6839594 and 6839603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131506 + ... + 131557.

It is an arithmetic number, because the mean of its divisors is an integer number (1381086).

Almost surely, 2^6839638 is an apocalyptic number.

6839638 is a deficient number, since it is larger than the sum of its proper divisors (4209050).

6839638 is a wasteful number, since it uses less digits than its factorization.

6839638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263078.

The product of its digits is 186624, while the sum is 43.

The square root of 6839638 is about 2615.2701581290. The cubic root of 6839638 is about 189.8210503475.

The spelling of 6839638 in words is "six million, eight hundred thirty-nine thousand, six hundred thirty-eight".