12393393 has 8 divisors (see below), whose sum is σ = 16541568. Its totient is φ = 8253744.

The previous prime is 12393371. The next prime is 12393401. The reversal of 12393393 is 39339321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12393393 - 2¹⁶ = 12327857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12393313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3096 + ... + 5862.

It is an arithmetic number, because the mean of its divisors is an integer number (2067696).

Almost surely, 2^12393393 is an apocalyptic number.

It is an amenable number.

12393393 is a deficient number, since it is larger than the sum of its proper divisors (4148175).

12393393 is a wasteful number, since it uses less digits than its factorization.

12393393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263.

The product of its digits is 13122, while the sum is 33.

The square root of 12393393 is about 3520.4251163744. The cubic root of 12393393 is about 231.4177893054.

The spelling of 12393393 in words is "twelve million, three hundred ninety-three thousand, three hundred ninety-three".