448228717 has 2 divisors, whose sum is σ = 448228718. Its totient is φ = 448228716.

The previous prime is 448228691. The next prime is 448228733. The reversal of 448228717 is 717822844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442934116 + 5294601 = 21046^2 + 2301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448228717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448228747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224114358 + 224114359.

It is an arithmetic number, because the mean of its divisors is an integer number (224114359).

Almost surely, 2^448228717 is an apocalyptic number.

It is an amenable number.

448228717 is a deficient number, since it is larger than the sum of its proper divisors (1).

448228717 is an equidigital number, since it uses as much as digits as its factorization.

448228717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 200704, while the sum is 43.

The square root of 448228717 is about 21171.4127303777. The cubic root of 448228717 is about 765.3026652062.

The spelling of 448228717 in words is "four hundred forty-eight million, two hundred twenty-eight thousand, seven hundred seventeen".