27189117 has 12 divisors (see below), whose sum is σ = 40335100. Its totient is φ = 17635968.

The previous prime is 27189101. The next prime is 27189143. The reversal of 27189117 is 71198172.

It can be written as a sum of positive squares in 2 ways, for example, as 23707161 + 3481956 = 4869^2 + 1866^2 .

It is not a de Polignac number, because 27189117 - 2⁴ = 27189101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27189517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40492 + ... + 41157.

Almost surely, 2^27189117 is an apocalyptic number.

It is an amenable number.

27189117 is a deficient number, since it is larger than the sum of its proper divisors (13145983).

27189117 is a wasteful number, since it uses less digits than its factorization.

27189117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81692 (or 81689 counting only the distinct ones).

The product of its digits is 7056, while the sum is 36.

The square root of 27189117 is about 5214.3184597798. The cubic root of 27189117 is about 300.6988043112.

The spelling of 27189117 in words is "twenty-seven million, one hundred eighty-nine thousand, one hundred seventeen".