6606646 has 16 divisors (see below), whose sum is σ = 10325664. Its totient is φ = 3167424.

The previous prime is 6606641. The next prime is 6606647. The reversal of 6606646 is 6466066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6606641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4791 + ... + 6013.

It is an arithmetic number, because the mean of its divisors is an integer number (645354).

Almost surely, 2^6606646 is an apocalyptic number.

6606646 is a deficient number, since it is larger than the sum of its proper divisors (3719018).

6606646 is a wasteful number, since it uses less digits than its factorization.

6606646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 6606646 is about 2570.3396662698. The cubic root of 6606646 is about 187.6406861169.

The spelling of 6606646 in words is "six million, six hundred six thousand, six hundred forty-six".