27247 has 4 divisors (see below), whose sum is σ = 29736. Its totient is φ = 24760.

The previous prime is 27241. The next prime is 27253. The reversal of 27247 is 74272.

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

It is an interprime number because it is at equal distance from previous prime (27241) and next prime (27253).

It is a cyclic number.

It is not a de Polignac number, because 27247 - 2³ = 27239 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (7434).

2²⁷²⁴⁷ is an apocalyptic number.

27247 is a deficient number, since it is larger than the sum of its proper divisors (2489).

27247 is a wasteful number, since it uses less digits than its factorization.

27247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488.

The product of its digits is 784, while the sum is 22.

The square root of 27247 is about 165.0666532041. The cubic root of 27247 is about 30.0912039286.

Subtracting from 27247 its sum of digits (22), we obtain a square (27225 = 165²).

The spelling of 27247 in words is "twenty-seven thousand, two hundred forty-seven", and thus it is an iban number.