448866881 has 2 divisors, whose sum is σ = 448866882. Its totient is φ = 448866880.

The previous prime is 448866863. The next prime is 448866907. The reversal of 448866881 is 188668844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242082481 + 206784400 = 15559^2 + 14380^2 .

It is a cyclic number.

It is not a de Polignac number, because 448866881 - 2²² = 444672577 is a prime.

It is a super-2 number, since 2×448866881² = 402962953717336322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (448863881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224433440 + 224433441.

It is an arithmetic number, because the mean of its divisors is an integer number (224433441).

Almost surely, 2^448866881 is an apocalyptic number.

It is an amenable number.

448866881 is a deficient number, since it is larger than the sum of its proper divisors (1).

448866881 is an equidigital number, since it uses as much as digits as its factorization.

448866881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2359296, while the sum is 53.

The square root of 448866881 is about 21186.4787305489. The cubic root of 448866881 is about 765.6656919336.

The spelling of 448866881 in words is "four hundred forty-eight million, eight hundred sixty-six thousand, eight hundred eighty-one".