6678866 has 8 divisors (see below), whose sum is σ = 10110540. Its totient is φ = 3308688.

The previous prime is 6678853. The next prime is 6678871. The reversal of 6678866 is 6688766.

It can be written as a sum of positive squares in 2 ways, for example, as 5736025 + 942841 = 2395^2 + 971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6678866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15101 + ... + 15536.

Almost surely, 2^6678866 is an apocalyptic number.

6678866 is a deficient number, since it is larger than the sum of its proper divisors (3431674).

6678866 is a wasteful number, since it uses less digits than its factorization.

6678866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30748.

The product of its digits is 580608, while the sum is 47.

The square root of 6678866 is about 2584.3502084663. The cubic root of 6678866 is about 188.3219359450.

The spelling of 6678866 in words is "six million, six hundred seventy-eight thousand, eight hundred sixty-six".