27325891 has 4 divisors (see below), whose sum is σ = 27350784. Its totient is φ = 27301000.

The previous prime is 27325889. The next prime is 27325913. The reversal of 27325891 is 19852372.

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

It is a cyclic number.

It is not a de Polignac number, because 27325891 - 2¹ = 27325889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27325891.

It is not an unprimeable number, because it can be changed into a prime (27325811) by changing a digit.

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, 10720 + ... + 13021.

It is an arithmetic number, because the mean of its divisors is an integer number (6837696).

Almost surely, 2^27325891 is an apocalyptic number.

27325891 is a deficient number, since it is larger than the sum of its proper divisors (24893).

27325891 is a wasteful number, since it uses less digits than its factorization.

27325891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24892.

The product of its digits is 30240, while the sum is 37.

The square root of 27325891 is about 5227.4172398996. The cubic root of 27325891 is about 301.2021798144.

The spelling of 27325891 in words is "twenty-seven million, three hundred twenty-five thousand, eight hundred ninety-one".