104009905 has 8 divisors (see below), whose sum is σ = 127714752. Its totient is φ = 81272688.

The previous prime is 104009891. The next prime is 104009909. The reversal of 104009905 is 509900401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104009905 - 2⁷ = 104009777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104009909) 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 in 7 ways as a sum of consecutive naturals, for example, 241669 + ... + 242098.

It is an arithmetic number, because the mean of its divisors is an integer number (15964344).

Almost surely, 2^104009905 is an apocalyptic number.

It is an amenable number.

104009905 is a deficient number, since it is larger than the sum of its proper divisors (23704847).

104009905 is an equidigital number, since it uses as much as digits as its factorization.

104009905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483815.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 104009905 is about 10198.5246482028. The cubic root of 104009905 is about 470.2818665382.

The spelling of 104009905 in words is "one hundred four million, nine thousand, nine hundred five".