448727281 has 2 divisors, whose sum is σ = 448727282. Its totient is φ = 448727280.

The previous prime is 448727267. The next prime is 448727287. The reversal of 448727281 is 182727844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403367056 + 45360225 = 20084^2 + 6735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448727281 is a prime.

It is a super-2 number, since 2×448727281² = 402712345427305922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (448727287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224363640 + 224363641.

It is an arithmetic number, because the mean of its divisors is an integer number (224363641).

Almost surely, 2^448727281 is an apocalyptic number.

It is an amenable number.

448727281 is a deficient number, since it is larger than the sum of its proper divisors (1).

448727281 is an equidigital number, since it uses as much as digits as its factorization.

448727281 is an evil number, because the sum of its binary digits is even.

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

The square root of 448727281 is about 21183.1839202703. The cubic root of 448727281 is about 765.5863083288.

The spelling of 448727281 in words is "four hundred forty-eight million, seven hundred twenty-seven thousand, two hundred eighty-one".