6669812 has 12 divisors (see below), whose sum is σ = 11820480. Its totient is φ = 3292536.

The previous prime is 6669809. The next prime is 6669827. The reversal of 6669812 is 2189666.

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, 10238 + ... + 10869.

It is an arithmetic number, because the mean of its divisors is an integer number (985040).

Almost surely, 2^6669812 is an apocalyptic number.

It is an amenable number.

6669812 is a deficient number, since it is larger than the sum of its proper divisors (5150668).

6669812 is a wasteful number, since it uses less digits than its factorization.

6669812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21190 (or 21188 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 6669812 is about 2582.5979168272. The cubic root of 6669812 is about 188.2367998424.

The spelling of 6669812 in words is "six million, six hundred sixty-nine thousand, eight hundred twelve".