6868646 has 16 divisors (see below), whose sum is σ = 10964160. Its totient is φ = 3216000.

The previous prime is 6868613. The next prime is 6868649. The reversal of 6868646 is 6468686.

It is a junction number, because it is equal to n+sod(n) for n = 6868597 and 6868606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6868649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8771 + ... + 9521.

It is an arithmetic number, because the mean of its divisors is an integer number (685260).

Almost surely, 2^6868646 is an apocalyptic number.

6868646 is a deficient number, since it is larger than the sum of its proper divisors (4095514).

6868646 is a wasteful number, since it uses less digits than its factorization.

6868646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

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

The square root of 6868646 is about 2620.8101800779. The cubic root of 6868646 is about 190.0890256853.

The spelling of 6868646 in words is "six million, eight hundred sixty-eight thousand, six hundred forty-six".