104769989 has 2 divisors, whose sum is σ = 104769990. Its totient is φ = 104769988.

The previous prime is 104769967. The next prime is 104770063. The reversal of 104769989 is 989967401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99341089 + 5428900 = 9967^2 + 2330^2 .

It is an emirp because it is prime and its reverse (989967401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104769989 - 2⁸ = 104769733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104769989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104769949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52384994 + 52384995.

It is an arithmetic number, because the mean of its divisors is an integer number (52384995).

Almost surely, 2^104769989 is an apocalyptic number.

It is an amenable number.

104769989 is a deficient number, since it is larger than the sum of its proper divisors (1).

104769989 is an equidigital number, since it uses as much as digits as its factorization.

104769989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 104769989 is about 10235.7212251995. The cubic root of 104769989 is about 471.4246631667.

The spelling of 104769989 in words is "one hundred four million, seven hundred sixty-nine thousand, nine hundred eighty-nine".