6780684 has 12 divisors (see below), whose sum is σ = 15821624. Its totient is φ = 2260224.

The previous prime is 6780679. The next prime is 6780707. The reversal of 6780684 is 4860876.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282517 + ... + 282540.

Almost surely, 2^6780684 is an apocalyptic number.

It is an amenable number.

6780684 is an abundant number, since it is smaller than the sum of its proper divisors (9040940).

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

6780684 is a wasteful number, since it uses less digits than its factorization.

6780684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565064 (or 565062 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 6780684 is about 2603.9746542545. The cubic root of 6780684 is about 189.2740907135.

The spelling of 6780684 in words is "six million, seven hundred eighty thousand, six hundred eighty-four".