669484351 has 2 divisors, whose sum is σ = 669484352. Its totient is φ = 669484350.

The previous prime is 669484331. The next prime is 669484363. The reversal of 669484351 is 153484966.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-669484351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669484331) 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, 334742175 + 334742176.

It is an arithmetic number, because the mean of its divisors is an integer number (334742176).

Almost surely, 2^669484351 is an apocalyptic number.

669484351 is a deficient number, since it is larger than the sum of its proper divisors (1).

669484351 is an equidigital number, since it uses as much as digits as its factorization.

669484351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 669484351 is about 25874.3956644402. The cubic root of 669484351 is about 874.8094718767.

The spelling of 669484351 in words is "six hundred sixty-nine million, four hundred eighty-four thousand, three hundred fifty-one".