12394429 has 2 divisors, whose sum is σ = 12394430. Its totient is φ = 12394428.

The previous prime is 12394409. The next prime is 12394433. The reversal of 12394429 is 92449321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12355225 + 39204 = 3515^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 12394429 - 2¹⁹ = 11870141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12394394 and 12394403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12394409) 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 as a sum of consecutive naturals, namely, 6197214 + 6197215.

It is an arithmetic number, because the mean of its divisors is an integer number (6197215).

Almost surely, 2^12394429 is an apocalyptic number.

It is an amenable number.

12394429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12394429 is an equidigital number, since it uses as much as digits as its factorization.

12394429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 12394429 is about 3520.5722546200. The cubic root of 12394429 is about 231.4242374226.

The spelling of 12394429 in words is "twelve million, three hundred ninety-four thousand, four hundred twenty-nine".