12909697 has 2 divisors, whose sum is σ = 12909698. Its totient is φ = 12909696.

The previous prime is 12909679. The next prime is 12909703. The reversal of 12909697 is 79690921.

Together with previous prime (12909679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11723776 + 1185921 = 3424^2 + 1089^2 .

It is a cyclic number.

It is not a de Polignac number, because 12909697 - 2¹¹ = 12907649 is a prime.

It is not a weakly prime, because it can be changed into another prime (12909667) 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, 6454848 + 6454849.

It is an arithmetic number, because the mean of its divisors is an integer number (6454849).

Almost surely, 2^12909697 is an apocalyptic number.

It is an amenable number.

12909697 is a deficient number, since it is larger than the sum of its proper divisors (1).

12909697 is an equidigital number, since it uses as much as digits as its factorization.

12909697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 12909697 is about 3593.0066796487. The cubic root of 12909697 is about 234.5877607455.

The spelling of 12909697 in words is "twelve million, nine hundred nine thousand, six hundred ninety-seven".