6664006 has 8 divisors (see below), whose sum is σ = 10160064. Its totient is φ = 3277320.

The previous prime is 6663971. The next prime is 6664019. The reversal of 6664006 is 6004666.

6664006 = 28² + 29² + ... + 271².

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27190 + ... + 27433.

It is an arithmetic number, because the mean of its divisors is an integer number (1270008).

Almost surely, 2^6664006 is an apocalyptic number.

6664006 is a deficient number, since it is larger than the sum of its proper divisors (3496058).

6664006 is a wasteful number, since it uses less digits than its factorization.

6664006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54686.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6664006 is about 2581.4736101692. The cubic root of 6664006 is about 188.1821646127.

The spelling of 6664006 in words is "six million, six hundred sixty-four thousand, six".