8099009 has 4 divisors (see below), whose sum is σ = 8104704. Its totient is φ = 8093316.

The previous prime is 8098991. The next prime is 8099011. The reversal of 8099009 is 9009908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8099009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8099009.

It is not an unprimeable number, because it can be changed into a prime (8092009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304 + ... + 4230.

It is an arithmetic number, because the mean of its divisors is an integer number (2026176).

Almost surely, 2^8099009 is an apocalyptic number.

It is an amenable number.

8099009 is a deficient number, since it is larger than the sum of its proper divisors (5695).

8099009 is a wasteful number, since it uses less digits than its factorization.

8099009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 8099009 is about 2845.8757878727. The cubic root of 8099009 is about 200.8216944677.

The spelling of 8099009 in words is "eight million, ninety-nine thousand, nine".