6684838 has 4 divisors (see below), whose sum is σ = 10027260. Its totient is φ = 3342418.

The previous prime is 6684833. The next prime is 6684869. The reversal of 6684838 is 8384866.

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

It is a junction number, because it is equal to n+sod(n) for n = 6684794 and 6684803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6684833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671208 + ... + 1671211.

It is an arithmetic number, because the mean of its divisors is an integer number (2506815).

Almost surely, 2^6684838 is an apocalyptic number.

6684838 is a deficient number, since it is larger than the sum of its proper divisors (3342422).

6684838 is a wasteful number, since it uses less digits than its factorization.

6684838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342421.

The product of its digits is 221184, while the sum is 43.

The square root of 6684838 is about 2585.5053664613. The cubic root of 6684838 is about 188.3780494408.

The spelling of 6684838 in words is "six million, six hundred eighty-four thousand, eight hundred thirty-eight".