448789399 has 2 divisors, whose sum is σ = 448789400. Its totient is φ = 448789398.

The previous prime is 448789381. The next prime is 448789421. The reversal of 448789399 is 993987844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 448789399 - 2⁹ = 448788887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448789309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224394699 + 224394700.

It is an arithmetic number, because the mean of its divisors is an integer number (224394700).

Almost surely, 2^448789399 is an apocalyptic number.

448789399 is a deficient number, since it is larger than the sum of its proper divisors (1).

448789399 is an equidigital number, since it uses as much as digits as its factorization.

448789399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 61.

The square root of 448789399 is about 21184.6500797157. The cubic root of 448789399 is about 765.6216337911.

The spelling of 448789399 in words is "four hundred forty-eight million, seven hundred eighty-nine thousand, three hundred ninety-nine".