447564197 has 2 divisors, whose sum is σ = 447564198. Its totient is φ = 447564196.

The previous prime is 447564193. The next prime is 447564269. The reversal of 447564197 is 791465744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 447153316 + 410881 = 21146^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 447564197 - 2² = 447564193 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 (447564193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223782098 + 223782099.

It is an arithmetic number, because the mean of its divisors is an integer number (223782099).

Almost surely, 2^447564197 is an apocalyptic number.

It is an amenable number.

447564197 is a deficient number, since it is larger than the sum of its proper divisors (1).

447564197 is an equidigital number, since it uses as much as digits as its factorization.

447564197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The square root of 447564197 is about 21155.7131054474. The cubic root of 447564197 is about 764.9242791757.

The spelling of 447564197 in words is "four hundred forty-seven million, five hundred sixty-four thousand, one hundred ninety-seven".