6866684 has 12 divisors (see below), whose sum is σ = 13109208. Its totient is φ = 3121200.

The previous prime is 6866683. The next prime is 6866693. The reversal of 6866684 is 4866686.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 156061 = 6866684 / (6 + 8 + 6 + 6 + 6 + 8 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866681) 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 3 ways as a sum of consecutive naturals, for example, 77987 + ... + 78074.

It is an arithmetic number, because the mean of its divisors is an integer number (1092434).

Almost surely, 2^6866684 is an apocalyptic number.

It is an amenable number.

6866684 is a deficient number, since it is larger than the sum of its proper divisors (6242524).

6866684 is a wasteful number, since it uses less digits than its factorization.

6866684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156076 (or 156074 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 6866684 is about 2620.4358416111. The cubic root of 6866684 is about 190.0709245833.

The spelling of 6866684 in words is "six million, eight hundred sixty-six thousand, six hundred eighty-four".