447685853 has 2 divisors, whose sum is σ = 447685854. Its totient is φ = 447685852.

The previous prime is 447685831. The next prime is 447685879. The reversal of 447685853 is 358586744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265624804 + 182061049 = 16298^2 + 13493^2 .

It is a cyclic number.

It is not a de Polignac number, because 447685853 - 2¹⁰ = 447684829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447685813) 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, 223842926 + 223842927.

It is an arithmetic number, because the mean of its divisors is an integer number (223842927).

Almost surely, 2^447685853 is an apocalyptic number.

It is an amenable number.

447685853 is a deficient number, since it is larger than the sum of its proper divisors (1).

447685853 is an equidigital number, since it uses as much as digits as its factorization.

447685853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 50.

The square root of 447685853 is about 21158.5881617843. The cubic root of 447685853 is about 764.9935796234.

The spelling of 447685853 in words is "four hundred forty-seven million, six hundred eighty-five thousand, eight hundred fifty-three".