448681811 has 2 divisors, whose sum is σ = 448681812. Its totient is φ = 448681810.

The previous prime is 448681777. The next prime is 448681829. The reversal of 448681811 is 118186844.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448681811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (448681711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224340905 + 224340906.

It is an arithmetic number, because the mean of its divisors is an integer number (224340906).

Almost surely, 2^448681811 is an apocalyptic number.

448681811 is a deficient number, since it is larger than the sum of its proper divisors (1).

448681811 is an equidigital number, since it uses as much as digits as its factorization.

448681811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49152, while the sum is 41.

The square root of 448681811 is about 21182.1106361005. The cubic root of 448681811 is about 765.5604482375.

The spelling of 448681811 in words is "four hundred forty-eight million, six hundred eighty-one thousand, eight hundred eleven".