6485509 has 8 divisors (see below), whose sum is σ = 6594560. Its totient is φ = 6377616.

The previous prime is 6485497. The next prime is 6485527. The reversal of 6485509 is 9055846.

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 6485509 - 2⁵ = 6485477 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 (6485579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28207 + ... + 28435.

It is an arithmetic number, because the mean of its divisors is an integer number (824320).

Almost surely, 2^6485509 is an apocalyptic number.

It is an amenable number.

6485509 is a deficient number, since it is larger than the sum of its proper divisors (109051).

6485509 is a wasteful number, since it uses less digits than its factorization.

6485509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 6485509 is about 2546.6662521815. Note that the first 3 decimals coincide. The cubic root of 6485509 is about 186.4867679352.

The spelling of 6485509 in words is "six million, four hundred eighty-five thousand, five hundred nine".