6878866 has 8 divisors (see below), whose sum is σ = 10347084. Its totient is φ = 3429840.

The previous prime is 6878849. The next prime is 6878867. The reversal of 6878866 is 6688786.

It can be written as a sum of positive squares in 2 ways, for example, as 6395841 + 483025 = 2529^2 + 695^2 .

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

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (6878867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3865 + ... + 5356.

Almost surely, 2^6878866 is an apocalyptic number.

6878866 is a deficient number, since it is larger than the sum of its proper divisors (3468218).

6878866 is a wasteful number, since it uses less digits than its factorization.

6878866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596.

The product of its digits is 774144, while the sum is 49.

The square root of 6878866 is about 2622.7592340892. The cubic root of 6878866 is about 190.1832580908.

It can be divided in two parts, 6878 and 866, that added together give a square (7744 = 88²).

The spelling of 6878866 in words is "six million, eight hundred seventy-eight thousand, eight hundred sixty-six".