448103861 has 2 divisors, whose sum is σ = 448103862. Its totient is φ = 448103860.

The previous prime is 448103849. The next prime is 448103863. The reversal of 448103861 is 168301844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445463236 + 2640625 = 21106^2 + 1625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448103861 is a prime.

It is a Sophie Germain prime.

Together with 448103863, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448103863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224051930 + 224051931.

It is an arithmetic number, because the mean of its divisors is an integer number (224051931).

Almost surely, 2^448103861 is an apocalyptic number.

It is an amenable number.

448103861 is a deficient number, since it is larger than the sum of its proper divisors (1).

448103861 is an equidigital number, since it uses as much as digits as its factorization.

448103861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 448103861 is about 21168.4638318419. The cubic root of 448103861 is about 765.2315991786.

The spelling of 448103861 in words is "four hundred forty-eight million, one hundred three thousand, eight hundred sixty-one".