12329389 has 2 divisors, whose sum is σ = 12329390. Its totient is φ = 12329388.

The previous prime is 12329353. The next prime is 12329393. The reversal of 12329389 is 98392321.

12329389 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8094025 + 4235364 = 2845^2 + 2058^2 .

It is a cyclic number.

It is not a de Polignac number, because 12329389 - 2¹⁵ = 12296621 is a prime.

It is a super-2 number, since 2×12329389² = 304027666226642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12329489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6164694 + 6164695.

It is an arithmetic number, because the mean of its divisors is an integer number (6164695).

Almost surely, 2^12329389 is an apocalyptic number.

It is an amenable number.

12329389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12329389 is an equidigital number, since it uses as much as digits as its factorization.

12329389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 12329389 is about 3511.3229700499. The cubic root of 12329389 is about 231.0187262669.

The spelling of 12329389 in words is "twelve million, three hundred twenty-nine thousand, three hundred eighty-nine".