12388693 has 2 divisors, whose sum is σ = 12388694. Its totient is φ = 12388692.

The previous prime is 12388669. The next prime is 12388721. The reversal of 12388693 is 39688321.

12388693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12341169 + 47524 = 3513^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 12388693 - 2⁵ = 12388661 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12388603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6194346 + 6194347.

It is an arithmetic number, because the mean of its divisors is an integer number (6194347).

Almost surely, 2^12388693 is an apocalyptic number.

It is an amenable number.

12388693 is a deficient number, since it is larger than the sum of its proper divisors (1).

12388693 is an equidigital number, since it uses as much as digits as its factorization.

12388693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 12388693 is about 3519.7575200573. The cubic root of 12388693 is about 231.3885317504.

The spelling of 12388693 in words is "twelve million, three hundred eighty-eight thousand, six hundred ninety-three".