447115609 has 2 divisors, whose sum is σ = 447115610. Its totient is φ = 447115608.

The previous prime is 447115553. The next prime is 447115637. The reversal of 447115609 is 906511744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445843225 + 1272384 = 21115^2 + 1128^2 .

It is a cyclic number.

It is not a de Polignac number, because 447115609 - 2¹⁵ = 447082841 is a prime.

It is a super-2 number, since 2×447115609² = 399824735622881762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (447115639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223557804 + 223557805.

It is an arithmetic number, because the mean of its divisors is an integer number (223557805).

Almost surely, 2^447115609 is an apocalyptic number.

It is an amenable number.

447115609 is a deficient number, since it is larger than the sum of its proper divisors (1).

447115609 is an equidigital number, since it uses as much as digits as its factorization.

447115609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 447115609 is about 21145.1083941417. The cubic root of 447115609 is about 764.6686357328.

The spelling of 447115609 in words is "four hundred forty-seven million, one hundred fifteen thousand, six hundred nine".