448648217 has 2 divisors, whose sum is σ = 448648218. Its totient is φ = 448648216.

The previous prime is 448648181. The next prime is 448648231. The reversal of 448648217 is 712846844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 448634761 + 13456 = 21181^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 448648217 - 2⁸ = 448647961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (448648247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224324108 + 224324109.

It is an arithmetic number, because the mean of its divisors is an integer number (224324109).

Almost surely, 2^448648217 is an apocalyptic number.

It is an amenable number.

448648217 is a deficient number, since it is larger than the sum of its proper divisors (1).

448648217 is an equidigital number, since it uses as much as digits as its factorization.

448648217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 344064, while the sum is 44.

The square root of 448648217 is about 21181.3176407890. The cubic root of 448648217 is about 765.5413412453.

The spelling of 448648217 in words is "four hundred forty-eight million, six hundred forty-eight thousand, two hundred seventeen".