6669606 has 16 divisors (see below), whose sum is σ = 13390704. Its totient is φ = 2214624.

The previous prime is 6669587. The next prime is 6669617. The reversal of 6669606 is 6069666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 345 + ... + 3668.

It is an arithmetic number, because the mean of its divisors is an integer number (836919).

Almost surely, 2^6669606 is an apocalyptic number.

6669606 is an abundant number, since it is smaller than the sum of its proper divisors (6721098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6669606 is a wasteful number, since it uses less digits than its factorization.

6669606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4295.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 6669606 is about 2582.5580341979. The cubic root of 6669606 is about 188.2348618978.

The spelling of 6669606 in words is "six million, six hundred sixty-nine thousand, six hundred six".