6866678 has 32 divisors (see below), whose sum is σ = 13124160. Its totient is φ = 2620800.

The previous prime is 6866677. The next prime is 6866681. The reversal of 6866678 is 8766686.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866677) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4628 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (410130).

Almost surely, 2^6866678 is an apocalyptic number.

6866678 is a deficient number, since it is larger than the sum of its proper divisors (6257482).

6866678 is a wasteful number, since it uses less digits than its factorization.

6866678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352.

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

The square root of 6866678 is about 2620.4346967631. The cubic root of 6866678 is about 190.0708692230.

The spelling of 6866678 in words is "six million, eight hundred sixty-six thousand, six hundred seventy-eight".