27189429 has 8 divisors (see below), whose sum is σ = 36278112. Its totient is φ = 18113520.

The previous prime is 27189419. The next prime is 27189433. The reversal of 27189429 is 92498172.

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

It is not a de Polignac number, because 27189429 - 2⁵ = 27189397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27189419) 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, 4267 + ... + 8519.

It is an arithmetic number, because the mean of its divisors is an integer number (4534764).

Almost surely, 2^27189429 is an apocalyptic number.

It is an amenable number.

27189429 is a deficient number, since it is larger than the sum of its proper divisors (9088683).

27189429 is a wasteful number, since it uses less digits than its factorization.

27189429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387.

The product of its digits is 72576, while the sum is 42.

The square root of 27189429 is about 5214.3483773143. The cubic root of 27189429 is about 300.6999544978.

The spelling of 27189429 in words is "twenty-seven million, one hundred eighty-nine thousand, four hundred twenty-nine".