6598809 has 12 divisors (see below), whose sum is σ = 10893376. Its totient is φ = 3770712.

The previous prime is 6598807. The next prime is 6598817. The reversal of 6598809 is 9088956.

It is not a de Polignac number, because 6598809 - 2¹ = 6598807 is a prime.

It is a Duffinian number.

It is a Curzon number.

6598809 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6598807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52309 + ... + 52434.

Almost surely, 2^6598809 is an apocalyptic number.

It is an amenable number.

6598809 is a deficient number, since it is larger than the sum of its proper divisors (4294567).

6598809 is a wasteful number, since it uses less digits than its factorization.

6598809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104756 (or 104753 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 6598809 is about 2568.8147072142. The cubic root of 6598809 is about 187.5664617723.

The spelling of 6598809 in words is "six million, five hundred ninety-eight thousand, eight hundred nine".