12438007 has 4 divisors (see below), whose sum is σ = 12448440. Its totient is φ = 12427576.

The previous prime is 12437969. The next prime is 12438043. The reversal of 12438007 is 70083421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12438007 - 2²³ = 4049399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157 + ... + 5902.

It is an arithmetic number, because the mean of its divisors is an integer number (3112110).

Almost surely, 2^12438007 is an apocalyptic number.

12438007 is a deficient number, since it is larger than the sum of its proper divisors (10433).

12438007 is an equidigital number, since it uses as much as digits as its factorization.

12438007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10432.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 12438007 is about 3526.7558747381. The cubic root of 12438007 is about 231.6951443234.

The spelling of 12438007 in words is "twelve million, four hundred thirty-eight thousand, seven".