17397 has 6 divisors (see below), whose sum is σ = 25142. Its totient is φ = 11592.

The previous prime is 17393. The next prime is 17401. The reversal of 17397 is 79371.

It is an interprime number because it is at equal distance from previous prime (17393) and next prime (17401).

It can be written as a sum of positive squares in only one way, i.e., 15876 + 1521 = 126^2 + 39^2 .

It is not a de Polignac number, because 17397 - 2² = 17393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 958 + ... + 975.

2¹⁷³⁹⁷ is an apocalyptic number.

It is an amenable number.

17397 is a deficient number, since it is larger than the sum of its proper divisors (7745).

17397 is a wasteful number, since it uses less digits than its factorization.

17397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939 (or 1936 counting only the distinct ones).

The product of its digits is 1323, while the sum is 27.

The square root of 17397 is about 131.8976876219. The cubic root of 17397 is about 25.9114343553.

Adding to 17397 its sum of digits (27), we get a square (17424 = 132²).

It can be divided in two parts, 17 and 397, that added together give a palindrome (414).

The spelling of 17397 in words is "seventeen thousand, three hundred ninety-seven".