669030017 has 2 divisors, whose sum is σ = 669030018. Its totient is φ = 669030016.

The previous prime is 669030013. The next prime is 669030059. The reversal of 669030017 is 710030966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 668946496 + 83521 = 25864^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 669030017 - 2² = 669030013 is a prime.

It is not a weakly prime, because it can be changed into another prime (669030013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334515008 + 334515009.

It is an arithmetic number, because the mean of its divisors is an integer number (334515009).

Almost surely, 2^669030017 is an apocalyptic number.

It is an amenable number.

669030017 is a deficient number, since it is larger than the sum of its proper divisors (1).

669030017 is an equidigital number, since it uses as much as digits as its factorization.

669030017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 669030017 is about 25865.6145683802. The cubic root of 669030017 is about 874.6115356448.

The spelling of 669030017 in words is "six hundred sixty-nine million, thirty thousand, seventeen".