12338913 has 4 divisors (see below), whose sum is σ = 16451888. Its totient is φ = 8225940.

The previous prime is 12338903. The next prime is 12338927. The reversal of 12338913 is 31983321.

12338913 is digitally balanced in base 2 and base 4, because in such bases 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12338913 - 2⁵ = 12338881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12338903) 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, 2056483 + ... + 2056488.

It is an arithmetic number, because the mean of its divisors is an integer number (4112972).

Almost surely, 2^12338913 is an apocalyptic number.

It is an amenable number.

12338913 is a deficient number, since it is larger than the sum of its proper divisors (4112975).

12338913 is an equidigital number, since it uses as much as digits as its factorization.

12338913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112974.

The product of its digits is 3888, while the sum is 30.

The square root of 12338913 is about 3512.6788922416. The cubic root of 12338913 is about 231.0781954496.

The spelling of 12338913 in words is "twelve million, three hundred thirty-eight thousand, nine hundred thirteen".