669324907 has 2 divisors, whose sum is σ = 669324908. Its totient is φ = 669324906.

The previous prime is 669324847. The next prime is 669324919. The reversal of 669324907 is 709423966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 669324907 - 2⁷ = 669324779 is a prime.

It is a super-2 number, since 2×669324907² = 895991662261117298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (669324947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334662453 + 334662454.

It is an arithmetic number, because the mean of its divisors is an integer number (334662454).

Almost surely, 2^669324907 is an apocalyptic number.

669324907 is a deficient number, since it is larger than the sum of its proper divisors (1).

669324907 is an equidigital number, since it uses as much as digits as its factorization.

669324907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 669324907 is about 25871.3143655285. The cubic root of 669324907 is about 874.7400183260.

The spelling of 669324907 in words is "six hundred sixty-nine million, three hundred twenty-four thousand, nine hundred seven".