6666339 has 8 divisors (see below), whose sum is σ = 9077760. Its totient is φ = 4349576.

The previous prime is 6666337. The next prime is 6666347. The reversal of 6666339 is 9336666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6666339 - 2¹ = 6666337 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6² + 6⁴ + 6⁵ + 6⁷ + 3 + 3¹³ + 9⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 6666297 and 6666306.

It is not an unprimeable number, because it can be changed into a prime (6666337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23499 + ... + 23780.

It is an arithmetic number, because the mean of its divisors is an integer number (1134720).

Almost surely, 2^6666339 is an apocalyptic number.

6666339 is a deficient number, since it is larger than the sum of its proper divisors (2411421).

6666339 is a wasteful number, since it uses less digits than its factorization.

6666339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47329.

The product of its digits is 104976, while the sum is 39.

The square root of 6666339 is about 2581.9254443148. The cubic root of 6666339 is about 188.2041222643.

The spelling of 6666339 in words is "six million, six hundred sixty-six thousand, three hundred thirty-nine".