6669211 has 4 divisors (see below), whose sum is σ = 6678000. Its totient is φ = 6660424.

The previous prime is 6669199. The next prime is 6669233. The reversal of 6669211 is 1129666.

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

It is a cyclic number.

It is not a de Polignac number, because 6669211 - 2⁹ = 6668699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6669251) 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 3 ways as a sum of consecutive naturals, for example, 3136 + ... + 4813.

It is an arithmetic number, because the mean of its divisors is an integer number (1669500).

Almost surely, 2^6669211 is an apocalyptic number.

6669211 is a deficient number, since it is larger than the sum of its proper divisors (8789).

6669211 is an equidigital number, since it uses as much as digits as its factorization.

6669211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8788.

The product of its digits is 3888, while the sum is 31.

The square root of 6669211 is about 2582.4815585014. The cubic root of 6669211 is about 188.2311458243.

The spelling of 6669211 in words is "six million, six hundred sixty-nine thousand, two hundred eleven".