108609816 has 64 divisors (see below), whose sum is σ = 314092800. Its totient is φ = 30653568.

The previous prime is 108609811. The next prime is 108609817. The reversal of 108609816 is 618906801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108609811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10050 + ... + 17838.

It is an arithmetic number, because the mean of its divisors is an integer number (4907700).

Almost surely, 2^108609816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108609816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157046400).

108609816 is an abundant number, since it is smaller than the sum of its proper divisors (205482984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108609816 is a wasteful number, since it uses less digits than its factorization.

108609816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888 (or 7884 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 108609816 is about 10421.6033315416. The cubic root of 108609816 is about 477.1149510460.

The spelling of 108609816 in words is "one hundred eight million, six hundred nine thousand, eight hundred sixteen".