448858891 has 4 divisors (see below), whose sum is σ = 483386512. Its totient is φ = 414331272.

The previous prime is 448858873. The next prime is 448858909. The reversal of 448858891 is 198858844.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (448858873) and next prime (448858909).

It is a cyclic number.

It is not a de Polignac number, because 448858891 - 2¹⁷ = 448727819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448858391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17263791 + ... + 17263816.

It is an arithmetic number, because the mean of its divisors is an integer number (120846628).

Almost surely, 2^448858891 is an apocalyptic number.

448858891 is a deficient number, since it is larger than the sum of its proper divisors (34527621).

448858891 is a wasteful number, since it uses less digits than its factorization.

448858891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34527620.

The product of its digits is 2949120, while the sum is 55.

The square root of 448858891 is about 21186.2901660484. The cubic root of 448858891 is about 765.6611488605.

The spelling of 448858891 in words is "four hundred forty-eight million, eight hundred fifty-eight thousand, eight hundred ninety-one".