12956947 has 2 divisors, whose sum is σ = 12956948. Its totient is φ = 12956946.

The previous prime is 12956927. The next prime is 12956953. The reversal of 12956947 is 74965921.

It is a happy number.

12956947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (74965921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12956947 - 2²³ = 4568339 is a prime.

It is not a weakly prime, because it can be changed into another prime (12956927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6478473 + 6478474.

It is an arithmetic number, because the mean of its divisors is an integer number (6478474).

Almost surely, 2^12956947 is an apocalyptic number.

12956947 is a deficient number, since it is larger than the sum of its proper divisors (1).

12956947 is an equidigital number, since it uses as much as digits as its factorization.

12956947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 12956947 is about 3599.5759472471. The cubic root of 12956947 is about 234.8736124369.

The spelling of 12956947 in words is "twelve million, nine hundred fifty-six thousand, nine hundred forty-seven".