447623880017 has 2 divisors, whose sum is σ = 447623880018. Its totient is φ = 447623880016.

The previous prime is 447623879981. The next prime is 447623880019. The reversal of 447623880017 is 710088326744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420278627521 + 27345252496 = 648289^2 + 165364^2 .

It is a cyclic number.

It is not a de Polignac number, because 447623880017 - 2⁸ = 447623879761 is a prime.

It is a super-2 number, since 2×447623880017² (a number of 24 digits) contains 22 as substring.

Together with 447623880019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (447623880019) 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, 223811940008 + 223811940009.

It is an arithmetic number, because the mean of its divisors is an integer number (223811940009).

Almost surely, 2^447623880017 is an apocalyptic number.

It is an amenable number.

447623880017 is a deficient number, since it is larger than the sum of its proper divisors (1).

447623880017 is an equidigital number, since it uses as much as digits as its factorization.

447623880017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 447623880017 in words is "four hundred forty-seven billion, six hundred twenty-three million, eight hundred eighty thousand, seventeen".