12393 has 14 divisors (see below), whose sum is σ = 19674. Its totient is φ = 7776.

The previous prime is 12391. The next prime is 12401. The reversal of 12393 is 39321.

It can be written as a sum of positive squares in only one way, i.e., 11664 + 729 = 108^2 + 27^2 .

It is not a de Polignac number, because 12393 - 2¹ = 12391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12391) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 721 + ... + 737.

2¹²³⁹³ is an apocalyptic number.

It is an amenable number.

12393 is a deficient number, since it is larger than the sum of its proper divisors (7281).

12393 is an frugal number, since it uses more digits than its factorization.

12393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35 (or 20 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 12393 is about 111.3238518917. The cubic root of 12393 is about 23.1415343159.

It can be divided in two parts, 123 and 93, that added together give a cube (216 = 6³).

The spelling of 12393 in words is "twelve thousand, three hundred ninety-three".