12669847 has 2 divisors, whose sum is σ = 12669848. Its totient is φ = 12669846.

The previous prime is 12669823. The next prime is 12669851. The reversal of 12669847 is 74896621.

12669847 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12669847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12669817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6334923 + 6334924.

It is an arithmetic number, because the mean of its divisors is an integer number (6334924).

Almost surely, 2^12669847 is an apocalyptic number.

12669847 is a deficient number, since it is larger than the sum of its proper divisors (1).

12669847 is an equidigital number, since it uses as much as digits as its factorization.

12669847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 12669847 is about 3559.4728542300. The cubic root of 12669847 is about 233.1258629729.

The spelling of 12669847 in words is "twelve million, six hundred sixty-nine thousand, eight hundred forty-seven".