27128099 has 8 divisors (see below), whose sum is σ = 27697488. Its totient is φ = 26563680.

The previous prime is 27128083. The next prime is 27128117. The reversal of 27128099 is 99082172.

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

It is a cyclic number.

It is not a de Polignac number, because 27128099 - 2⁴ = 27128083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27121099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11009 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (3462186).

Almost surely, 2^27128099 is an apocalyptic number.

27128099 is a deficient number, since it is larger than the sum of its proper divisors (569389).

27128099 is a wasteful number, since it uses less digits than its factorization.

27128099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 27128099 is about 5208.4641690233. The cubic root of 27128099 is about 300.4736923988.

The spelling of 27128099 in words is "twenty-seven million, one hundred twenty-eight thousand, ninety-nine".