27189898 has 8 divisors (see below), whose sum is σ = 40850208. Its totient is φ = 13573164.

The previous prime is 27189881. The next prime is 27189917. The reversal of 27189898 is 89898172.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9286 + ... + 11857.

It is an arithmetic number, because the mean of its divisors is an integer number (5106276).

Almost surely, 2^27189898 is an apocalyptic number.

27189898 is a deficient number, since it is larger than the sum of its proper divisors (13660310).

27189898 is a wasteful number, since it uses less digits than its factorization.

27189898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21788.

The product of its digits is 580608, while the sum is 52.

The square root of 27189898 is about 5214.3933491826. The cubic root of 27189898 is about 300.7016834475.

The spelling of 27189898 in words is "twenty-seven million, one hundred eighty-nine thousand, eight hundred ninety-eight".