12606397 has 2 divisors, whose sum is σ = 12606398. Its totient is φ = 12606396.

The previous prime is 12606383. The next prime is 12606409. The reversal of 12606397 is 79360621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 1490841 = 3334^2 + 1221^2 .

It is a cyclic number.

It is not a de Polignac number, because 12606397 - 2¹¹ = 12604349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12606317) 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, 6303198 + 6303199.

It is an arithmetic number, because the mean of its divisors is an integer number (6303199).

Almost surely, 2^12606397 is an apocalyptic number.

It is an amenable number.

12606397 is a deficient number, since it is larger than the sum of its proper divisors (1).

12606397 is an equidigital number, since it uses as much as digits as its factorization.

12606397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 12606397 is about 3550.5488308148. The cubic root of 12606397 is about 232.7360503938.

The spelling of 12606397 in words is "twelve million, six hundred six thousand, three hundred ninety-seven".