27328989 has 8 divisors (see below), whose sum is σ = 36564192. Its totient is φ = 18156560.

The previous prime is 27328981. The next prime is 27328997. The reversal of 27328989 is 98982372.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27328981) and next prime (27328997).

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 27328989 - 2³ = 27328981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27328981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14667 + ... + 16424.

It is an arithmetic number, because the mean of its divisors is an integer number (4570524).

Almost surely, 2^27328989 is an apocalyptic number.

It is an amenable number.

27328989 is a deficient number, since it is larger than the sum of its proper divisors (9235203).

27328989 is a wasteful number, since it uses less digits than its factorization.

27328989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31387.

The product of its digits is 435456, while the sum is 48.

The square root of 27328989 is about 5227.7135537441. The cubic root of 27328989 is about 301.2135620488.

The spelling of 27328989 in words is "twenty-seven million, three hundred twenty-eight thousand, nine hundred eighty-nine".