12499447 has 2 divisors, whose sum is σ = 12499448. Its totient is φ = 12499446.

The previous prime is 12499441. The next prime is 12499481. The reversal of 12499447 is 74499421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12499447 - 2³ = 12499439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12499441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6249723 + 6249724.

It is an arithmetic number, because the mean of its divisors is an integer number (6249724).

Almost surely, 2^12499447 is an apocalyptic number.

12499447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12499447 is an equidigital number, since it uses as much as digits as its factorization.

12499447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 12499447 is about 3535.4556990578. The cubic root of 12499447 is about 232.0760192320.

The spelling of 12499447 in words is "twelve million, four hundred ninety-nine thousand, four hundred forty-seven".