108516789 has 12 divisors (see below), whose sum is σ = 157195116. Its totient is φ = 72137472.

The previous prime is 108516769. The next prime is 108516823. The reversal of 108516789 is 987615801.

It can be written as a sum of positive squares in 2 ways, for example, as 64400625 + 44116164 = 8025^2 + 6642^2 .

It is not a de Polignac number, because 108516789 - 2¹³ = 108508597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108516719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13902 + ... + 20255.

It is an arithmetic number, because the mean of its divisors is an integer number (13099593).

Almost surely, 2^108516789 is an apocalyptic number.

It is an amenable number.

108516789 is a deficient number, since it is larger than the sum of its proper divisors (48678327).

108516789 is a wasteful number, since it uses less digits than its factorization.

108516789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34516 (or 34513 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 108516789 is about 10417.1391946158. The cubic root of 108516789 is about 476.9786918741.

The spelling of 108516789 in words is "one hundred eight million, five hundred sixteen thousand, seven hundred eighty-nine".