6680678 has 4 divisors (see below), whose sum is σ = 10021020. Its totient is φ = 3340338.

The previous prime is 6680657. The next prime is 6680689. The reversal of 6680678 is 8760866.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8760866 = 2 ⋅4380433.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1670168 + ... + 1670171.

It is an arithmetic number, because the mean of its divisors is an integer number (2505255).

Almost surely, 2^6680678 is an apocalyptic number.

6680678 is a deficient number, since it is larger than the sum of its proper divisors (3340342).

6680678 is a wasteful number, since it uses less digits than its factorization.

6680678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340341.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 6680678 is about 2584.7007563739. The cubic root of 6680678 is about 188.3389652078.

The spelling of 6680678 in words is "six million, six hundred eighty thousand, six hundred seventy-eight".