27189147 has 8 divisors (see below), whose sum is σ = 36866880. Its totient is φ = 17818760.

The previous prime is 27189143. The next prime is 27189161. The reversal of 27189147 is 74198172.

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 27189147 - 2² = 27189143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27189143) 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, 76629 + ... + 76982.

It is an arithmetic number, because the mean of its divisors is an integer number (4608360).

Almost surely, 2^27189147 is an apocalyptic number.

27189147 is a deficient number, since it is larger than the sum of its proper divisors (9677733).

27189147 is a wasteful number, since it uses less digits than its factorization.

27189147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153673.

The product of its digits is 28224, while the sum is 39.

The square root of 27189147 is about 5214.3213364732. The cubic root of 27189147 is about 300.6989149065.

The spelling of 27189147 in words is "twenty-seven million, one hundred eighty-nine thousand, one hundred forty-seven".