27099136 has 32 divisors (see below), whose sum is σ = 54262980. Its totient is φ = 13533184.

The previous prime is 27099131. The next prime is 27099143. The reversal of 27099136 is 63199072.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 27099095 and 27099104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27099131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32355 + ... + 33181.

Almost surely, 2^27099136 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 27099136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27131490).

27099136 is an abundant number, since it is smaller than the sum of its proper divisors (27163844).

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

27099136 is an frugal number, since it uses more digits than its factorization.

27099136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 27099136 is about 5205.6830483617. The cubic root of 27099136 is about 300.3667219045.

The spelling of 27099136 in words is "twenty-seven million, ninety-nine thousand, one hundred thirty-six".