6809099 has 4 divisors (see below), whose sum is σ = 7428120. Its totient is φ = 6190080.

The previous prime is 6809063. The next prime is 6809137. The reversal of 6809099 is 9909086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6809099 - 2¹⁶ = 6743563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6809029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309494 + ... + 309515.

It is an arithmetic number, because the mean of its divisors is an integer number (1857030).

Almost surely, 2^6809099 is an apocalyptic number.

6809099 is a deficient number, since it is larger than the sum of its proper divisors (619021).

6809099 is a wasteful number, since it uses less digits than its factorization.

6809099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619020.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 6809099 is about 2609.4250324545. The cubic root of 6809099 is about 189.5381116738.

It can be divided in two parts, 680 and 9099, that added together give a palindrome (9779).

The spelling of 6809099 in words is "six million, eight hundred nine thousand, ninety-nine".