108008809 has 4 divisors (see below), whose sum is σ = 110928004. Its totient is φ = 105089616.

The previous prime is 108008807. The next prime is 108008827. The reversal of 108008809 is 908800801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46621584 + 61387225 = 6828^2 + 7835^2 .

It is a cyclic number.

It is not a de Polignac number, because 108008809 - 2¹ = 108008807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108008807) 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, 1459542 + ... + 1459615.

It is an arithmetic number, because the mean of its divisors is an integer number (27732001).

Almost surely, 2^108008809 is an apocalyptic number.

It is an amenable number.

108008809 is a deficient number, since it is larger than the sum of its proper divisors (2919195).

108008809 is an equidigital number, since it uses as much as digits as its factorization.

108008809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919194.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 108008809 is about 10392.7286599815. The cubic root of 108008809 is about 476.2332628457.

The spelling of 108008809 in words is "one hundred eight million, eight thousand, eight hundred nine".