669301223 has 2 divisors, whose sum is σ = 669301224. Its totient is φ = 669301222.

The previous prime is 669301207. The next prime is 669301229. The reversal of 669301223 is 322103966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 669301223 - 2⁴ = 669301207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 669301223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669301229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334650611 + 334650612.

It is an arithmetic number, because the mean of its divisors is an integer number (334650612).

Almost surely, 2^669301223 is an apocalyptic number.

669301223 is a deficient number, since it is larger than the sum of its proper divisors (1).

669301223 is an equidigital number, since it uses as much as digits as its factorization.

669301223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 669301223 is about 25870.8566344449. The cubic root of 669301223 is about 874.7297006727.

The spelling of 669301223 in words is "six hundred sixty-nine million, three hundred one thousand, two hundred twenty-three".