12438693 has 24 divisors (see below), whose sum is σ = 18505760. Its totient is φ = 8048160.

The previous prime is 12438683. The next prime is 12438707. The reversal of 12438693 is 39683421.

12438693 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12438693 - 2⁴ = 12438677 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76230 + ... + 76392.

Almost surely, 2^12438693 is an apocalyptic number.

It is an amenable number.

12438693 is a deficient number, since it is larger than the sum of its proper divisors (6067067).

12438693 is a wasteful number, since it uses less digits than its factorization.

12438693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 366 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 12438693 is about 3526.8531299162. The cubic root of 12438693 is about 231.6994038469.

It can be divided in two parts, 12438 and 693, that added together give a palindrome (13131).

The spelling of 12438693 in words is "twelve million, four hundred thirty-eight thousand, six hundred ninety-three".