6448859 has 8 divisors (see below), whose sum is σ = 6651360. Its totient is φ = 6249600.

The previous prime is 6448853. The next prime is 6448861. The reversal of 6448859 is 9588446.

It is a happy number.

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-6448859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6448853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3587 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (831420).

Almost surely, 2^6448859 is an apocalyptic number.

6448859 is a deficient number, since it is larger than the sum of its proper divisors (202501).

6448859 is a wasteful number, since it uses less digits than its factorization.

6448859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621.

The product of its digits is 276480, while the sum is 44.

The square root of 6448859 is about 2539.4603757491. The cubic root of 6448859 is about 186.1348215099.

The spelling of 6448859 in words is "six million, four hundred forty-eight thousand, eight hundred fifty-nine".