27493271 has 4 divisors (see below), whose sum is σ = 29608152. Its totient is φ = 25378392.

The previous prime is 27493237. The next prime is 27493283. The reversal of 27493271 is 17239472.

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

It is not a de Polignac number, because 27493271 - 2¹⁴ = 27476887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27495271) 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, 1057421 + ... + 1057446.

It is an arithmetic number, because the mean of its divisors is an integer number (7402038).

Almost surely, 2^27493271 is an apocalyptic number.

27493271 is a deficient number, since it is larger than the sum of its proper divisors (2114881).

27493271 is a wasteful number, since it uses less digits than its factorization.

27493271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114880.

The product of its digits is 21168, while the sum is 35.

The square root of 27493271 is about 5243.4026166221. The cubic root of 27493271 is about 301.8159156198.

The spelling of 27493271 in words is "twenty-seven million, four hundred ninety-three thousand, two hundred seventy-one".