669301229 has 2 divisors, whose sum is σ = 669301230. Its totient is φ = 669301228.

The previous prime is 669301223. The next prime is 669301247. The reversal of 669301229 is 922103966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 633277225 + 36024004 = 25165^2 + 6002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-669301229 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 669301192 and 669301201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669301223) 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, 334650614 + 334650615.

It is an arithmetic number, because the mean of its divisors is an integer number (334650615).

Almost surely, 2^669301229 is an apocalyptic number.

It is an amenable number.

669301229 is a deficient number, since it is larger than the sum of its proper divisors (1).

669301229 is an equidigital number, since it uses as much as digits as its factorization.

669301229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 669301229 is about 25870.8567504055. The cubic root of 669301229 is about 874.7297032866.

The spelling of 669301229 in words is "six hundred sixty-nine million, three hundred one thousand, two hundred twenty-nine".