8099989 has 4 divisors (see below), whose sum is σ = 8118880. Its totient is φ = 8081100.

The previous prime is 8099983. The next prime is 8099999. The reversal of 8099989 is 9899908.

8099989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 8099989 - 2³ = 8099981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8099981) 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, 8787 + ... + 9664.

It is an arithmetic number, because the mean of its divisors is an integer number (2029720).

Almost surely, 2^8099989 is an apocalyptic number.

It is an amenable number.

8099989 is a deficient number, since it is larger than the sum of its proper divisors (18891).

8099989 is a wasteful number, since it uses less digits than its factorization.

8099989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18890.

The product of its (nonzero) digits is 419904, while the sum is 52.

The square root of 8099989 is about 2846.0479616479. The cubic root of 8099989 is about 200.8297941140.

The spelling of 8099989 in words is "eight million, ninety-nine thousand, nine hundred eighty-nine".