108859809 has 8 divisors (see below), whose sum is σ = 149069440. Its totient is φ = 70611696.

The previous prime is 108859801. The next prime is 108859811. The reversal of 108859809 is 908958801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108859809 - 2³ = 108859801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108859801) 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 7 ways as a sum of consecutive naturals, for example, 490249 + ... + 490470.

It is an arithmetic number, because the mean of its divisors is an integer number (18633680).

Almost surely, 2^108859809 is an apocalyptic number.

It is an amenable number.

108859809 is a deficient number, since it is larger than the sum of its proper divisors (40209631).

108859809 is an equidigital number, since it uses as much as digits as its factorization.

108859809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980759.

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 108859809 is about 10433.5904174929. The cubic root of 108859809 is about 477.4807375068.

The spelling of 108859809 in words is "one hundred eight million, eight hundred fifty-nine thousand, eight hundred nine".