104018689 has 2 divisors, whose sum is σ = 104018690. Its totient is φ = 104018688.

The previous prime is 104018687. The next prime is 104018713. The reversal of 104018689 is 986810401.

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., 55130625 + 48888064 = 7425^2 + 6992^2 .

It is an emirp because it is prime and its reverse (986810401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104018689 - 2¹ = 104018687 is a prime.

It is a super-2 number, since 2×104018689² = 21639775322557442, which contains 22 as substring.

Together with 104018687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (104018683) 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, 52009344 + 52009345.

It is an arithmetic number, because the mean of its divisors is an integer number (52009345).

Almost surely, 2^104018689 is an apocalyptic number.

It is an amenable number.

104018689 is a deficient number, since it is larger than the sum of its proper divisors (1).

104018689 is an equidigital number, since it uses as much as digits as its factorization.

104018689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 104018689 is about 10198.9552896363. The cubic root of 104018689 is about 470.2951051480.

The spelling of 104018689 in words is "one hundred four million, eighteen thousand, six hundred eighty-nine".