27423 has 12 divisors (see below), whose sum is σ = 43368.
Its totient is φ = 16560.
The previous prime is 27409. The next prime is 27427. The reversal of 27423 is 32472.
It is a happy number.
It is not a de Polignac number, because 27423 - 24 = 27407 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 27396 and 27405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (27427) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40 + ... + 237.
It is an arithmetic number, because the mean of its divisors is an integer number (3614).
227423 is an apocalyptic number.
27423 is a deficient number, since it is larger than the sum of its proper divisors (15945).
27423 is a wasteful number, since it uses less digits than its factorization.
27423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 294 (or 291 counting only the distinct ones).
The product of its digits is 336, while the sum is 18.
The square root of 27423 is about 165.5989130399.
The cubic root of 27423 is about 30.1558555659.
Adding to 27423 its reverse (32472), we get a palindrome (59895).
The spelling of 27423 in words is "twenty-seven thousand, four hundred twenty-three", and thus it is an iban number.