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BaseRepresentation
bin11000110011001
3122102021
43012121
5401242
6134441
752006
oct30631
918367
1012697
1195a3
127421
135a19
153b67
hex3199

12697 has 2 divisors, whose sum is σ = 12698. Its totient is φ = 12696.

The previous prime is 12689. The next prime is 12703. The reversal of 12697 is 79621.

12697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9216 + 3481 = 96^2 + 59^2 .

It is an emirp because it is prime and its reverse (79621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12697 - 23 = 12689 is a prime.

It is a super-2 number, since 2×126972 = 322427618, which contains 22 as substring.

It is a plaindrome in base 14.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (12637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6348 + 6349.

It is an arithmetic number, because the mean of its divisors is an integer number (6349).

212697 is an apocalyptic number.

It is an amenable number.

12697 is a deficient number, since it is larger than the sum of its proper divisors (1).

12697 is an equidigital number, since it uses as much as digits as its factorization.

12697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 12697 is about 112.6809655621. The cubic root of 12697 is about 23.3292283028.

The spelling of 12697 in words is "twelve thousand, six hundred ninety-seven".