6667229 has 2 divisors, whose sum is σ = 6667230. Its totient is φ = 6667228.

The previous prime is 6667223. The next prime is 6667253. The reversal of 6667229 is 9227666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4831204 + 1836025 = 2198^2 + 1355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6667229 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6667192 and 6667201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6667223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333614 + 3333615.

It is an arithmetic number, because the mean of its divisors is an integer number (3333615).

Almost surely, 2^6667229 is an apocalyptic number.

It is an amenable number.

6667229 is a deficient number, since it is larger than the sum of its proper divisors (1).

6667229 is an equidigital number, since it uses as much as digits as its factorization.

6667229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 6667229 is about 2582.0977905571. The cubic root of 6667229 is about 188.2124973867.

The spelling of 6667229 in words is "six million, six hundred sixty-seven thousand, two hundred twenty-nine".