6864668 has 24 divisors (see below), whose sum is σ = 12820752. Its totient is φ = 3204864.

The previous prime is 6864661. The next prime is 6864691. The reversal of 6864668 is 8664686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864661) 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 7 ways as a sum of consecutive naturals, for example, 10355 + ... + 10997.

It is an arithmetic number, because the mean of its divisors is an integer number (534198).

Almost surely, 2^6864668 is an apocalyptic number.

6864668 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6864668 is a deficient number, since it is larger than the sum of its proper divisors (5956084).

6864668 is a wasteful number, since it uses less digits than its factorization.

6864668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

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

The square root of 6864668 is about 2620.0511445390. The cubic root of 6864668 is about 190.0523216939.

The spelling of 6864668 in words is "six million, eight hundred sixty-four thousand, six hundred sixty-eight".