27320 has 16 divisors (see below), whose sum is σ = 61560. Its totient is φ = 10912.
The previous prime is 27299. The next prime is 27329. The reversal of 27320 is 2372.
It is a junction number, because it is equal to n+sod(n) for n = 27295 and 27304.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (27329) 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, 302 + ... + 381.
227320 is an apocalyptic number.
27320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
27320 is an abundant number, since it is smaller than the sum of its proper divisors (34240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30780).
27320 is a wasteful number, since it uses less digits than its factorization.
27320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 694 (or 690 counting only the distinct ones).
The product of its (nonzero) digits is 84, while the sum is 14.
The square root of 27320 is about 165.2876280912. The cubic root of 27320 is about 30.1180533560.
Adding to 27320 its reverse (2372), we get a palindrome (29692).
It can be divided in two parts, 273 and 20, that multiplied together give a triangular number (5460 = T104).
The spelling of 27320 in words is "twenty-seven thousand, three hundred twenty", and thus it is an iban number.
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