6485809 has 8 divisors (see below), whose sum is σ = 7096320. Its totient is φ = 5878800.

The previous prime is 6485803. The next prime is 6485833. The reversal of 6485809 is 9085846.

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

It is a cyclic number.

It is not a de Polignac number, because 6485809 - 2⁷ = 6485681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6485803) 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, 4432 + ... + 5710.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^6485809 is an apocalyptic number.

It is an amenable number.

6485809 is a deficient number, since it is larger than the sum of its proper divisors (610511).

6485809 is a wasteful number, since it uses less digits than its factorization.

6485809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 6485809 is about 2546.7251520335. The cubic root of 6485809 is about 186.4896433285.

The spelling of 6485809 in words is "six million, four hundred eighty-five thousand, eight hundred nine".