27487 has 2 divisors, whose sum is σ = 27488. Its totient is φ = 27486.

The previous prime is 27481. The next prime is 27509. The reversal of 27487 is 78472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27487 - 2³ = 27479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27481) 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 as a sum of consecutive naturals, namely, 13743 + 13744.

It is an arithmetic number, because the mean of its divisors is an integer number (13744).

2²⁷⁴⁸⁷ is an apocalyptic number.

27487 is a deficient number, since it is larger than the sum of its proper divisors (1).

27487 is an equidigital number, since it uses as much as digits as its factorization.

27487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 28.

The square root of 27487 is about 165.7920384096. The cubic root of 27487 is about 30.1792966592.

It can be divided in two parts, 274 and 87, that added together give a square (361 = 19²).

The spelling of 27487 in words is "twenty-seven thousand, four hundred eighty-seven".