6839984 has 20 divisors (see below), whose sum is σ = 14032584. Its totient is φ = 3218688.

The previous prime is 6839983. The next prime is 6840013. The reversal of 6839984 is 4899386.

It is a super-2 number, since 2×6839984² = 93570762240512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6839983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12302 + ... + 12845.

Almost surely, 2^6839984 is an apocalyptic number.

It is an amenable number.

6839984 is an abundant number, since it is smaller than the sum of its proper divisors (7192600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6839984 is a wasteful number, since it uses less digits than its factorization.

6839984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25172 (or 25166 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 6839984 is about 2615.3363072462. The cubic root of 6839984 is about 189.8242511492.

The spelling of 6839984 in words is "six million, eight hundred thirty-nine thousand, nine hundred eighty-four".