104065729 has 6 divisors (see below), whose sum is σ = 107531970. Its totient is φ = 100707840.

The previous prime is 104065699. The next prime is 104065733. The reversal of 104065729 is 927560401.

It can be written as a sum of positive squares in only one way, i.e., 62489025 + 41576704 = 7905^2 + 6448^2 .

It is a de Polignac number, because none of the positive numbers 2^k-104065729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104065694 and 104065703.

It is not an unprimeable number, because it can be changed into a prime (104065799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53184 + ... + 55105.

It is an arithmetic number, because the mean of its divisors is an integer number (17921995).

Almost surely, 2^104065729 is an apocalyptic number.

It is an amenable number.

104065729 is a deficient number, since it is larger than the sum of its proper divisors (3466241).

104065729 is an equidigital number, since it uses as much as digits as its factorization.

104065729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108351 (or 108320 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 104065729 is about 10201.2611475248. The cubic root of 104065729 is about 470.3659877556.

The spelling of 104065729 in words is "one hundred four million, sixty-five thousand, seven hundred twenty-nine".