447806897 has 2 divisors, whose sum is σ = 447806898. Its totient is φ = 447806896.

The previous prime is 447806881. The next prime is 447806963. The reversal of 447806897 is 798608744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440832016 + 6974881 = 20996^2 + 2641^2 .

It is a cyclic number.

It is not a de Polignac number, because 447806897 - 2⁴ = 447806881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (447806837) 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, 223903448 + 223903449.

It is an arithmetic number, because the mean of its divisors is an integer number (223903449).

Almost surely, 2^447806897 is an apocalyptic number.

It is an amenable number.

447806897 is a deficient number, since it is larger than the sum of its proper divisors (1).

447806897 is an equidigital number, since it uses as much as digits as its factorization.

447806897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 447806897 is about 21161.4483672550. The cubic root of 447806897 is about 765.0625189910.

The spelling of 447806897 in words is "four hundred forty-seven million, eight hundred six thousand, eight hundred ninety-seven".