6459909 has 16 divisors (see below), whose sum is σ = 8843520. Its totient is φ = 4193280.

The previous prime is 6459907. The next prime is 6459913. The reversal of 6459909 is 9099546.

It is a happy number.

6459909 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6459909 - 2¹ = 6459907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6459907) 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, 22849 + ... + 23129.

It is an arithmetic number, because the mean of its divisors is an integer number (552720).

Almost surely, 2^6459909 is an apocalyptic number.

It is an amenable number.

6459909 is a deficient number, since it is larger than the sum of its proper divisors (2383611).

6459909 is a wasteful number, since it uses less digits than its factorization.

6459909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 6459909 is about 2541.6351036292. The cubic root of 6459909 is about 186.2410736980.

The spelling of 6459909 in words is "six million, four hundred fifty-nine thousand, nine hundred nine".