448213901 has 2 divisors, whose sum is σ = 448213902. Its totient is φ = 448213900.

The previous prime is 448213889. The next prime is 448213907. The reversal of 448213901 is 109312844.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311557801 + 136656100 = 17651^2 + 11690^2 .

It is a cyclic number.

It is not a de Polignac number, because 448213901 - 2⁶ = 448213837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448213907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224106950 + 224106951.

It is an arithmetic number, because the mean of its divisors is an integer number (224106951).

Almost surely, 2^448213901 is an apocalyptic number.

It is an amenable number.

448213901 is a deficient number, since it is larger than the sum of its proper divisors (1).

448213901 is an equidigital number, since it uses as much as digits as its factorization.

448213901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 448213901 is about 21171.0628216913. The cubic root of 448213901 is about 765.2942328674.

The spelling of 448213901 in words is "four hundred forty-eight million, two hundred thirteen thousand, nine hundred one".