447806489 has 8 divisors (see below), whose sum is σ = 484920072. Its totient is φ = 411073920.

The previous prime is 447806483. The next prime is 447806543. The reversal of 447806489 is 984608744.

It can be written as a sum of positive squares in 4 ways, for example, as 86806489 + 361000000 = 9317^2 + 19000^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447806489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447806483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92804 + ... + 97509.

It is an arithmetic number, because the mean of its divisors is an integer number (60615009).

Almost surely, 2^447806489 is an apocalyptic number.

It is an amenable number.

447806489 is a deficient number, since it is larger than the sum of its proper divisors (37113583).

447806489 is a wasteful number, since it uses less digits than its factorization.

447806489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190507.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 447806489 is about 21161.4387270809. The cubic root of 447806489 is about 765.0622866396.

The spelling of 447806489 in words is "four hundred forty-seven million, eight hundred six thousand, four hundred eighty-nine".