6456009 has 16 divisors (see below), whose sum is σ = 10177920. Its totient is φ = 3561600.

The previous prime is 6456007. The next prime is 6456011. The reversal of 6456009 is 9006546.

It is an interprime number because it is at equal distance from previous prime (6456007) and next prime (6456011).

It is not a de Polignac number, because 6456009 - 2¹ = 6456007 is a prime.

6456009 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4692 + ... + 5909.

It is an arithmetic number, because the mean of its divisors is an integer number (636120).

Almost surely, 2^6456009 is an apocalyptic number.

It is an amenable number.

6456009 is a deficient number, since it is larger than the sum of its proper divisors (3721911).

6456009 is a wasteful number, since it uses less digits than its factorization.

6456009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10640.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6456009 is about 2540.8677651543. The cubic root of 6456009 is about 186.2035867713.

The spelling of 6456009 in words is "six million, four hundred fifty-six thousand, nine".