6480009 has 24 divisors (see below), whose sum is σ = 10162152. Its totient is φ = 3962880.

The previous prime is 6479999. The next prime is 6480011. The reversal of 6480009 is 9000846.

It can be written as a sum of positive squares in 4 ways, for example, as 1814409 + 4665600 = 1347^2 + 2160^2 .

It is not a de Polignac number, because 6480009 - 2¹² = 6475913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6480049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5757 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (423423).

Almost surely, 2^6480009 is an apocalyptic number.

It is an amenable number.

6480009 is a deficient number, since it is larger than the sum of its proper divisors (3682143).

6480009 is a wasteful number, since it uses less digits than its factorization.

6480009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 6480009 is about 2545.5861800379. The cubic root of 6480009 is about 186.4340366692.

It can be divided in two parts, 648000 and 9, that multiplied together give a cube (5832000 = 180³).

The spelling of 6480009 in words is "six million, four hundred eighty thousand, nine".