447322769 has 2 divisors, whose sum is σ = 447322770. Its totient is φ = 447322768.

The previous prime is 447322739. The next prime is 447322781. The reversal of 447322769 is 967223744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411562369 + 35760400 = 20287^2 + 5980^2 .

It is a cyclic number.

It is not a de Polignac number, because 447322769 - 2²⁰ = 446274193 is a prime.

It is a super-2 number, since 2×447322769² = 400195319331654722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (447322739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223661384 + 223661385.

It is an arithmetic number, because the mean of its divisors is an integer number (223661385).

Almost surely, 2^447322769 is an apocalyptic number.

It is an amenable number.

447322769 is a deficient number, since it is larger than the sum of its proper divisors (1).

447322769 is an equidigital number, since it uses as much as digits as its factorization.

447322769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 44.

The square root of 447322769 is about 21150.0063593371. The cubic root of 447322769 is about 764.7867142884.

The spelling of 447322769 in words is "four hundred forty-seven million, three hundred twenty-two thousand, seven hundred sixty-nine".