6680439 has 24 divisors (see below), whose sum is σ = 10445760. Its totient is φ = 4098048.

The previous prime is 6680431. The next prime is 6680441. The reversal of 6680439 is 9340866.

It is not a de Polignac number, because 6680439 - 2³ = 6680431 is a prime.

It is a super-3 number, since 3×6680439³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6727 + ... + 7655.

It is an arithmetic number, because the mean of its divisors is an integer number (435240).

Almost surely, 2^6680439 is an apocalyptic number.

6680439 is a deficient number, since it is larger than the sum of its proper divisors (3765321).

6680439 is a wasteful number, since it uses less digits than its factorization.

6680439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6680439 is about 2584.6545223685. The cubic root of 6680439 is about 188.3367192507.

The spelling of 6680439 in words is "six million, six hundred eighty thousand, four hundred thirty-nine".