448860689 has 4 divisors (see below), whose sum is σ = 450458340. Its totient is φ = 447263040.

The previous prime is 448860683. The next prime is 448860697. The reversal of 448860689 is 986068844.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104387089 + 344473600 = 10217^2 + 18560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448860689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 448860689.

It is not an unprimeable number, because it can be changed into a prime (448860683) 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, 798404 + ... + 798965.

It is an arithmetic number, because the mean of its divisors is an integer number (112614585).

Almost surely, 2^448860689 is an apocalyptic number.

It is an amenable number.

448860689 is a deficient number, since it is larger than the sum of its proper divisors (1597651).

448860689 is a wasteful number, since it uses less digits than its factorization.

448860689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597650.

The product of its (nonzero) digits is 2654208, while the sum is 53.

The square root of 448860689 is about 21186.3325991074. The cubic root of 448860689 is about 765.6621711988.

The spelling of 448860689 in words is "four hundred forty-eight million, eight hundred sixty thousand, six hundred eighty-nine".