6604006 has 4 divisors (see below), whose sum is σ = 9906012. Its totient is φ = 3302002.

The previous prime is 6603997. The next prime is 6604009. The reversal of 6604006 is 6004066.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6604006² = 87225790496072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6604009) 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 as a sum of consecutive naturals, namely, 1651000 + ... + 1651003.

It is an arithmetic number, because the mean of its divisors is an integer number (2476503).

Almost surely, 2^6604006 is an apocalyptic number.

6604006 is a deficient number, since it is larger than the sum of its proper divisors (3302006).

6604006 is a wasteful number, since it uses less digits than its factorization.

6604006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3302005.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6604006 is about 2569.8260641530. The cubic root of 6604006 is about 187.6156891966.

The spelling of 6604006 in words is "six million, six hundred four thousand, six".