6706664 has 16 divisors (see below), whose sum is σ = 12981120. Its totient is φ = 3245040.

The previous prime is 6706631. The next prime is 6706669. The reversal of 6706664 is 4666076.

6706664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (6706669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13274 + ... + 13769.

It is an arithmetic number, because the mean of its divisors is an integer number (811320).

Almost surely, 2^6706664 is an apocalyptic number.

It is an amenable number.

6706664 is a deficient number, since it is larger than the sum of its proper divisors (6274456).

6706664 is a wasteful number, since it uses less digits than its factorization.

6706664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27080 (or 27076 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 6706664 is about 2589.7227650851. The cubic root of 6706664 is about 188.5828448640.

The spelling of 6706664 in words is "six million, seven hundred six thousand, six hundred sixty-four".