448866889 has 4 divisors (see below), whose sum is σ = 448991620. Its totient is φ = 448742160.

The previous prime is 448866881. The next prime is 448866907. The reversal of 448866889 is 988668844.

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 48066489 + 400800400 = 6933^2 + 20020^2 .

It is a cyclic number.

It is not a de Polignac number, because 448866889 - 2³ = 448866881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448866881) 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, 56802 + ... + 64219.

It is an arithmetic number, because the mean of its divisors is an integer number (112247905).

Almost surely, 2^448866889 is an apocalyptic number.

It is an amenable number.

448866889 is a deficient number, since it is larger than the sum of its proper divisors (124731).

448866889 is a wasteful number, since it uses less digits than its factorization.

448866889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124730.

The product of its digits is 21233664, while the sum is 61.

The square root of 448866889 is about 21186.4789193485. The cubic root of 448866889 is about 765.6656964823.

The spelling of 448866889 in words is "four hundred forty-eight million, eight hundred sixty-six thousand, eight hundred eighty-nine".