448516689 has 4 divisors (see below), whose sum is σ = 598022256. Its totient is φ = 299011124.

The previous prime is 448516681. The next prime is 448516741. The reversal of 448516689 is 986615844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 448516689 - 2³ = 448516681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (448516681) 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, 74752779 + ... + 74752784.

It is an arithmetic number, because the mean of its divisors is an integer number (149505564).

Almost surely, 2^448516689 is an apocalyptic number.

It is an amenable number.

448516689 is a deficient number, since it is larger than the sum of its proper divisors (149505567).

448516689 is a wasteful number, since it uses less digits than its factorization.

448516689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149505566.

The product of its digits is 1658880, while the sum is 51.

The square root of 448516689 is about 21178.2126016338. The cubic root of 448516689 is about 765.4665239319.

The spelling of 448516689 in words is "four hundred forty-eight million, five hundred sixteen thousand, six hundred eighty-nine".