12689069 has 2 divisors, whose sum is σ = 12689070. Its totient is φ = 12689068.

The previous prime is 12689057. The next prime is 12689081. The reversal of 12689069 is 96098621.

It is a balanced prime because it is at equal distance from previous prime (12689057) and next prime (12689081).

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 1225 = 3562^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 12689069 - 2⁸ = 12688813 is a prime.

It is a super-2 number, since 2×12689069² = 322024944173522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12689029) 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, 6344534 + 6344535.

It is an arithmetic number, because the mean of its divisors is an integer number (6344535).

Almost surely, 2^12689069 is an apocalyptic number.

It is an amenable number.

12689069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12689069 is an equidigital number, since it uses as much as digits as its factorization.

12689069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 12689069 is about 3562.1719498082. The cubic root of 12689069 is about 233.2436986780.

The spelling of 12689069 in words is "twelve million, six hundred eighty-nine thousand, sixty-nine".