6669279 has 6 divisors (see below), whose sum is σ = 9633416. Its totient is φ = 4446180.

The previous prime is 6669269. The next prime is 6669281. The reversal of 6669279 is 9729666.

It is not a de Polignac number, because 6669279 - 2¹⁶ = 6603743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6669239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370507 + ... + 370524.

Almost surely, 2^6669279 is an apocalyptic number.

6669279 is a deficient number, since it is larger than the sum of its proper divisors (2964137).

6669279 is a wasteful number, since it uses less digits than its factorization.

6669279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741037 (or 741034 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 6669279 is about 2582.4947240992. The cubic root of 6669279 is about 188.2317855638.

The spelling of 6669279 in words is "six million, six hundred sixty-nine thousand, two hundred seventy-nine".