27670189 has 4 divisors (see below), whose sum is σ = 27981180. Its totient is φ = 27359200.

The previous prime is 27670183. The next prime is 27670193. The reversal of 27670189 is 98107672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10778089 + 16892100 = 3283^2 + 4110^2 .

It is a cyclic number.

It is not a de Polignac number, because 27670189 - 2¹¹ = 27668141 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27670183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155362 + ... + 155539.

It is an arithmetic number, because the mean of its divisors is an integer number (6995295).

Almost surely, 2^27670189 is an apocalyptic number.

It is an amenable number.

27670189 is a deficient number, since it is larger than the sum of its proper divisors (310991).

27670189 is an equidigital number, since it uses as much as digits as its factorization.

27670189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310990.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 27670189 is about 5260.2460969046. The cubic root of 27670189 is about 302.4619226712.

The spelling of 27670189 in words is "twenty-seven million, six hundred seventy thousand, one hundred eighty-nine".