12993383 has 4 divisors (see below), whose sum is σ = 13992888. Its totient is φ = 11993880.

The previous prime is 12993373. The next prime is 12993391. The reversal of 12993383 is 38339921.

12993383 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 12993383 - 2¹² = 12989287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12993313) 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, 499733 + ... + 499758.

It is an arithmetic number, because the mean of its divisors is an integer number (3498222).

Almost surely, 2^12993383 is an apocalyptic number.

12993383 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12993383 is a deficient number, since it is larger than the sum of its proper divisors (999505).

12993383 is an equidigital number, since it uses as much as digits as its factorization.

12993383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999504.

The product of its digits is 34992, while the sum is 38.

The square root of 12993383 is about 3604.6335458684. The cubic root of 12993383 is about 235.0935676896.

The spelling of 12993383 in words is "twelve million, nine hundred ninety-three thousand, three hundred eighty-three".