12715447 has 2 divisors, whose sum is σ = 12715448. Its totient is φ = 12715446.

The previous prime is 12715441. The next prime is 12715471. The reversal of 12715447 is 74451721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12715447 is a prime.

It is equal to p₈₃₁₈₈₃ and since 12715447 and 831883 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12715441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6357723 + 6357724.

It is an arithmetic number, because the mean of its divisors is an integer number (6357724).

Almost surely, 2^12715447 is an apocalyptic number.

12715447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12715447 is an equidigital number, since it uses as much as digits as its factorization.

12715447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7840, while the sum is 31.

The square root of 12715447 is about 3565.8725439926. The cubic root of 12715447 is about 233.4052089231.

The spelling of 12715447 in words is "twelve million, seven hundred fifteen thousand, four hundred forty-seven".