104685985 has 4 divisors (see below), whose sum is σ = 125623188. Its totient is φ = 83748784.

The previous prime is 104685941. The next prime is 104686003. The reversal of 104685985 is 589586401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68541841 + 36144144 = 8279^2 + 6012^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104685985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10468594 + ... + 10468603.

It is an arithmetic number, because the mean of its divisors is an integer number (31405797).

Almost surely, 2^104685985 is an apocalyptic number.

It is an amenable number.

104685985 is a deficient number, since it is larger than the sum of its proper divisors (20937203).

104685985 is an equidigital number, since it uses as much as digits as its factorization.

104685985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20937202.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 104685985 is about 10231.6169298894. The cubic root of 104685985 is about 471.2986342450.

The spelling of 104685985 in words is "one hundred four million, six hundred eighty-five thousand, nine hundred eighty-five".