27099108 has 72 divisors (see below), whose sum is σ = 71842680. Its totient is φ = 8601600.

The previous prime is 27099101. The next prime is 27099109. The reversal of 27099108 is 80199072.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19873764 + 7225344 = 4458^2 + 2688^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27099101) 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 23 ways as a sum of consecutive naturals, for example, 105316 + ... + 105572.

It is an arithmetic number, because the mean of its divisors is an integer number (997815).

Almost surely, 2^27099108 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 27099108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35921340).

27099108 is an abundant number, since it is smaller than the sum of its proper divisors (44743572).

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

27099108 is a wasteful number, since it uses less digits than its factorization.

27099108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 27099108 is about 5205.6803589925. The cubic root of 27099108 is about 300.3666184539.

Subtracting from 27099108 its sum of digits (36), we obtain a palindrome (27099072).

The spelling of 27099108 in words is "twenty-seven million, ninety-nine thousand, one hundred eight".