6668916 has 12 divisors (see below), whose sum is σ = 15560832. Its totient is φ = 2222968.

The previous prime is 6668911. The next prime is 6668939. The reversal of 6668916 is 6198666.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277860 + ... + 277883.

It is an arithmetic number, because the mean of its divisors is an integer number (1296736).

Almost surely, 2^6668916 is an apocalyptic number.

It is an amenable number.

6668916 is an abundant number, since it is smaller than the sum of its proper divisors (8891916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6668916 is a wasteful number, since it uses less digits than its factorization.

6668916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555750 (or 555748 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 6668916 is about 2582.4244422635. The cubic root of 6668916 is about 188.2283704331.

The spelling of 6668916 in words is "six million, six hundred sixty-eight thousand, nine hundred sixteen".