12669407 has 2 divisors, whose sum is σ = 12669408. Its totient is φ = 12669406.

The previous prime is 12669383. The next prime is 12669413. The reversal of 12669407 is 70496621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12669407 - 2¹² = 12665311 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12669427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6334703 + 6334704.

It is an arithmetic number, because the mean of its divisors is an integer number (6334704).

Almost surely, 2^12669407 is an apocalyptic number.

12669407 is a deficient number, since it is larger than the sum of its proper divisors (1).

12669407 is an equidigital number, since it uses as much as digits as its factorization.

12669407 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12669407 is about 3559.4110467885. The cubic root of 12669407 is about 233.1231642671.

The spelling of 12669407 in words is "twelve million, six hundred sixty-nine thousand, four hundred seven".