18297 has 12 divisors (see below), whose sum is σ = 28080. Its totient is φ = 11448.
The previous prime is 18289. The next prime is 18301. The reversal of 18297 is 79281.
It is not a de Polignac number, because 18297 - 23 = 18289 is a prime.
It is a plaindrome in base 16.
It is a self number, because there is not a number n which added to its sum of digits gives 18297.
It is not an unprimeable number, because it can be changed into a prime (18217) 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, 118 + ... + 224.
It is an arithmetic number, because the mean of its divisors is an integer number (2340).
218297 is an apocalyptic number.
It is an amenable number.
18297 is a deficient number, since it is larger than the sum of its proper divisors (9783).
18297 is a wasteful number, since it uses less digits than its factorization.
18297 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 132 (or 129 counting only the distinct ones).
The product of its digits is 1008, while the sum is 27.
The square root of 18297 is about 135.2664038111. The cubic root of 18297 is about 26.3507691326.
The spelling of 18297 in words is "eighteen thousand, two hundred ninety-seven".
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