108821107 has 8 divisors (see below), whose sum is σ = 112518000. Its totient is φ = 105164064.

The previous prime is 108821071. The next prime is 108821117. The reversal of 108821107 is 701128801.

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

It is a de Polignac number, because none of the positive numbers 2^k-108821107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108821117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4357 + ... + 15382.

It is an arithmetic number, because the mean of its divisors is an integer number (14064750).

Almost surely, 2^108821107 is an apocalyptic number.

108821107 is a deficient number, since it is larger than the sum of its proper divisors (3696893).

108821107 is a wasteful number, since it uses less digits than its factorization.

108821107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19925.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 108821107 is about 10431.7355698848. The cubic root of 108821107 is about 477.4241459142.

Adding to 108821107 its reverse (701128801), we get a palindrome (809949908).

The spelling of 108821107 in words is "one hundred eight million, eight hundred twenty-one thousand, one hundred seven".