12697393 has 2 divisors, whose sum is σ = 12697394. Its totient is φ = 12697392.

The previous prime is 12697367. The next prime is 12697409. The reversal of 12697393 is 39379621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11102224 + 1595169 = 3332^2 + 1263^2 .

It is a cyclic number.

It is not a de Polignac number, because 12697393 - 2⁹ = 12696881 is a prime.

It is a super-2 number, since 2×12697393² = 322447577992898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12697303) 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, 6348696 + 6348697.

It is an arithmetic number, because the mean of its divisors is an integer number (6348697).

Almost surely, 2^12697393 is an apocalyptic number.

It is an amenable number.

12697393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12697393 is an equidigital number, since it uses as much as digits as its factorization.

12697393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 40.

The square root of 12697393 is about 3563.3401465479. The cubic root of 12697393 is about 233.2946899723.

The spelling of 12697393 in words is "twelve million, six hundred ninety-seven thousand, three hundred ninety-three".