104066689 has 2 divisors, whose sum is σ = 104066690. Its totient is φ = 104066688.

The previous prime is 104066653. The next prime is 104066693. The reversal of 104066689 is 986660401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94867600 + 9199089 = 9740^2 + 3033^2 .

It is an emirp because it is prime and its reverse (986660401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104066689 - 2¹¹ = 104064641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104066489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52033344 + 52033345.

It is an arithmetic number, because the mean of its divisors is an integer number (52033345).

Almost surely, 2^104066689 is an apocalyptic number.

It is an amenable number.

104066689 is a deficient number, since it is larger than the sum of its proper divisors (1).

104066689 is an equidigital number, since it uses as much as digits as its factorization.

104066689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 104066689 is about 10201.3082004221. The cubic root of 104066689 is about 470.3674341170.

The spelling of 104066689 in words is "one hundred four million, sixty-six thousand, six hundred eighty-nine".