6678938 has 16 divisors (see below), whose sum is σ = 11489280. Its totient is φ = 2852496.

The previous prime is 6678929. The next prime is 6678967. The reversal of 6678938 is 8398766.

It is a junction number, because it is equal to n+sod(n) for n = 6678892 and 6678901.

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 7 ways as a sum of consecutive naturals, for example, 4583 + ... + 5861.

It is an arithmetic number, because the mean of its divisors is an integer number (718080).

Almost surely, 2^6678938 is an apocalyptic number.

6678938 is a deficient number, since it is larger than the sum of its proper divisors (4810342).

6678938 is a wasteful number, since it uses less digits than its factorization.

6678938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661.

The product of its digits is 435456, while the sum is 47.

The square root of 6678938 is about 2584.3641384294. The cubic root of 6678938 is about 188.3226126632.

The spelling of 6678938 in words is "six million, six hundred seventy-eight thousand, nine hundred thirty-eight".