8448809 has 4 divisors (see below), whose sum is σ = 8476116. Its totient is φ = 8421504.

The previous prime is 8448799. The next prime is 8448821. The reversal of 8448809 is 9088448.

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 183184 + 8265625 = 428^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 8448809 - 2⁴ = 8448793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8444809) 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, 13184 + ... + 13809.

It is an arithmetic number, because the mean of its divisors is an integer number (2119029).

Almost surely, 2^8448809 is an apocalyptic number.

It is an amenable number.

8448809 is a deficient number, since it is larger than the sum of its proper divisors (27307).

8448809 is a wasteful number, since it uses less digits than its factorization.

8448809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27306.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 8448809 is about 2906.6835053029. The cubic root of 8448809 is about 203.6722357460.

The spelling of 8448809 in words is "eight million, four hundred forty-eight thousand, eight hundred nine".