12389497 has 2 divisors, whose sum is σ = 12389498. Its totient is φ = 12389496.

The previous prime is 12389483. The next prime is 12389537. The reversal of 12389497 is 79498321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12257001 + 132496 = 3501^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 12389497 - 2²³ = 4000889 is a prime.

It is not a weakly prime, because it can be changed into another prime (12389407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6194748 + 6194749.

It is an arithmetic number, because the mean of its divisors is an integer number (6194749).

Almost surely, 2^12389497 is an apocalyptic number.

It is an amenable number.

12389497 is a deficient number, since it is larger than the sum of its proper divisors (1).

12389497 is an equidigital number, since it uses as much as digits as its factorization.

12389497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 12389497 is about 3519.8717306175. The cubic root of 12389497 is about 231.3935371844.

The spelling of 12389497 in words is "twelve million, three hundred eighty-nine thousand, four hundred ninety-seven".