13427 has 4 divisors (see below), whose sum is σ = 13920. Its totient is φ = 12936.

The previous prime is 13421. The next prime is 13441. The reversal of 13427 is 72431.

It is a happy number.

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 13427 - 2⁴ = 13411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13421) 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, 203 + ... + 260.

It is an arithmetic number, because the mean of its divisors is an integer number (3480).

2¹³⁴²⁷ is an apocalyptic number.

13427 is a deficient number, since it is larger than the sum of its proper divisors (493).

13427 is an equidigital number, since it uses as much as digits as its factorization.

13427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its digits is 168, while the sum is 17.

The square root of 13427 is about 115.8749325782. The cubic root of 13427 is about 23.7680195658.

Adding to 13427 its reverse (72431), we get a palindrome (85858).

It can be divided in two parts, 134 and 27, that added together give a palindrome (161).

The spelling of 13427 in words is "thirteen thousand, four hundred twenty-seven".