12432493 has 2 divisors, whose sum is σ = 12432494. Its totient is φ = 12432492.

The previous prime is 12432449. The next prime is 12432509. The reversal of 12432493 is 39423421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12376324 + 56169 = 3518^2 + 237^2 .

It is an emirp because it is prime and its reverse (39423421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12432493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12432193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216246 + 6216247.

It is an arithmetic number, because the mean of its divisors is an integer number (6216247).

Almost surely, 2^12432493 is an apocalyptic number.

It is an amenable number.

12432493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12432493 is an equidigital number, since it uses as much as digits as its factorization.

12432493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 12432493 is about 3525.9740498194. The cubic root of 12432493 is about 231.6609010061.

The spelling of 12432493 in words is "twelve million, four hundred thirty-two thousand, four hundred ninety-three".