104396489 has 2 divisors, whose sum is σ = 104396490. Its totient is φ = 104396488.

The previous prime is 104396477. The next prime is 104396521. The reversal of 104396489 is 984693401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72812089 + 31584400 = 8533^2 + 5620^2 .

It is an emirp because it is prime and its reverse (984693401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104396489 - 2⁸ = 104396233 is a prime.

It is a super-3 number, since 3×104396489³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (104396419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52198244 + 52198245.

It is an arithmetic number, because the mean of its divisors is an integer number (52198245).

Almost surely, 2^104396489 is an apocalyptic number.

It is an amenable number.

104396489 is a deficient number, since it is larger than the sum of its proper divisors (1).

104396489 is an equidigital number, since it uses as much as digits as its factorization.

104396489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 104396489 is about 10217.4600072621. The cubic root of 104396489 is about 470.8637940213.

The spelling of 104396489 in words is "one hundred four million, three hundred ninety-six thousand, four hundred eighty-nine".