12987383 has 4 divisors (see below), whose sum is σ = 13000320. Its totient is φ = 12974448.

The previous prime is 12987379. The next prime is 12987397. The reversal of 12987383 is 38378921.

12987383 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38378921 = 7 ⋅5482703.

It is a cyclic number.

It is not a de Polignac number, because 12987383 - 2² = 12987379 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 12987383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987343) 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, 4823 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (3250080).

Almost surely, 2^12987383 is an apocalyptic number.

12987383 is a deficient number, since it is larger than the sum of its proper divisors (12937).

12987383 is a wasteful number, since it uses less digits than its factorization.

12987383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12936.

The product of its digits is 72576, while the sum is 41.

The square root of 12987383 is about 3603.8011876351. The cubic root of 12987383 is about 235.0573754579.

The spelling of 12987383 in words is "twelve million, nine hundred eighty-seven thousand, three hundred eighty-three".