6684339 has 4 divisors (see below), whose sum is σ = 8912456. Its totient is φ = 4456224.

The previous prime is 6684299. The next prime is 6684341. The reversal of 6684339 is 9334866.

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

It is not a de Polignac number, because 6684339 - 2⁹ = 6683827 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6684297 and 6684306.

It is not an unprimeable number, because it can be changed into a prime (6680339) 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, 1114054 + ... + 1114059.

It is an arithmetic number, because the mean of its divisors is an integer number (2228114).

Almost surely, 2^6684339 is an apocalyptic number.

6684339 is a deficient number, since it is larger than the sum of its proper divisors (2228117).

6684339 is a wasteful number, since it uses less digits than its factorization.

6684339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228116.

The product of its digits is 93312, while the sum is 39.

The square root of 6684339 is about 2585.4088651507. The cubic root of 6684339 is about 188.3733620679.

The spelling of 6684339 in words is "six million, six hundred eighty-four thousand, three hundred thirty-nine".