104705729 has 4 divisors (see below), whose sum is σ = 109258176. Its totient is φ = 100153284.

The previous prime is 104705719. The next prime is 104705743. The reversal of 104705729 is 927507401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 927507401 = 19 ⋅48816179.

It is a cyclic number.

It is not a de Polignac number, because 104705729 - 2¹² = 104701633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104705719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276189 + ... + 2276234.

It is an arithmetic number, because the mean of its divisors is an integer number (27314544).

Almost surely, 2^104705729 is an apocalyptic number.

It is an amenable number.

104705729 is a deficient number, since it is larger than the sum of its proper divisors (4552447).

104705729 is an equidigital number, since it uses as much as digits as its factorization.

104705729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552446.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 104705729 is about 10232.5817367857. The cubic root of 104705729 is about 471.3282616916.

The spelling of 104705729 in words is "one hundred four million, seven hundred five thousand, seven hundred twenty-nine".