6668006 has 8 divisors (see below), whose sum is σ = 10018080. Its totient is φ = 3328648.

The previous prime is 6667981. The next prime is 6668021. The reversal of 6668006 is 6008666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881 + ... + 3756.

It is an arithmetic number, because the mean of its divisors is an integer number (1252260).

Almost surely, 2^6668006 is an apocalyptic number.

6668006 is a deficient number, since it is larger than the sum of its proper divisors (3350074).

6668006 is a wasteful number, since it uses less digits than its factorization.

6668006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 6668006 is about 2582.2482452313. The cubic root of 6668006 is about 188.2198085415.

The spelling of 6668006 in words is "six million, six hundred sixty-eight thousand, six".