13206889 has 2 divisors, whose sum is σ = 13206890. Its totient is φ = 13206888.

The previous prime is 13206883. The next prime is 13206917. The reversal of 13206889 is 98860231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13017664 + 189225 = 3608^2 + 435^2 .

It is a cyclic number.

It is not a de Polignac number, because 13206889 - 2⁹ = 13206377 is a prime.

It is not a weakly prime, because it can be changed into another prime (13206883) 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, 6603444 + 6603445.

It is an arithmetic number, because the mean of its divisors is an integer number (6603445).

Almost surely, 2^13206889 is an apocalyptic number.

It is an amenable number.

13206889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13206889 is an equidigital number, since it uses as much as digits as its factorization.

13206889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 13206889 is about 3634.1283686738. The cubic root of 13206889 is about 236.3742565562.

The spelling of 13206889 in words is "thirteen million, two hundred six thousand, eight hundred eighty-nine".