12669047 has 4 divisors (see below), whose sum is σ = 12963720. Its totient is φ = 12374376.

The previous prime is 12669043. The next prime is 12669053. The reversal of 12669047 is 74096621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12669047 - 2² = 12669043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12668998 and 12669016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12669043) 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 in 3 ways as a sum of consecutive naturals, for example, 147272 + ... + 147357.

It is an arithmetic number, because the mean of its divisors is an integer number (3240930).

Almost surely, 2^12669047 is an apocalyptic number.

12669047 is a deficient number, since it is larger than the sum of its proper divisors (294673).

12669047 is an equidigital number, since it uses as much as digits as its factorization.

12669047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294672.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 12669047 is about 3559.3604762654. The cubic root of 12669047 is about 233.1209561887.

The spelling of 12669047 in words is "twelve million, six hundred sixty-nine thousand, forty-seven".