12990383 has 4 divisors (see below), whose sum is σ = 14846160. Its totient is φ = 11134608.

The previous prime is 12990371. The next prime is 12990403. The reversal of 12990383 is 38309921.

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 12990383 - 2⁸ = 12990127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12990323) 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, 927878 + ... + 927891.

It is an arithmetic number, because the mean of its divisors is an integer number (3711540).

Almost surely, 2^12990383 is an apocalyptic number.

12990383 is a deficient number, since it is larger than the sum of its proper divisors (1855777).

12990383 is an equidigital number, since it uses as much as digits as its factorization.

12990383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855776.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12990383 is about 3604.2173907799. The cubic root of 12990383 is about 235.0754729668.

The spelling of 12990383 in words is "twelve million, nine hundred ninety thousand, three hundred eighty-three".