729105 has 16 divisors (see below), whose sum is σ = 1256640. Its totient is φ = 358848.

The previous prime is 729073. The next prime is 729139. The reversal of 729105 is 501927.

It is not a de Polignac number, because 729105 - 2⁵ = 729073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1675 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (78540).

2⁷²⁹¹⁰⁵ is an apocalyptic number.

It is an amenable number.

729105 is a deficient number, since it is larger than the sum of its proper divisors (527535).

729105 is a wasteful number, since it uses less digits than its factorization.

729105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 729105 is about 853.8764547638. The cubic root of 729105 is about 90.0043207802.

The spelling of 729105 in words is "seven hundred twenty-nine thousand, one hundred five".