729085 has 16 divisors (see below), whose sum is σ = 1028736. Its totient is φ = 485568.

The previous prime is 729073. The next prime is 729139. The reversal of 729085 is 580927.

It is a cyclic number.

It is not a de Polignac number, because 729085 - 2⁹ = 728573 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1014 + ... + 1576.

It is an arithmetic number, because the mean of its divisors is an integer number (64296).

2⁷²⁹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

729085 is a deficient number, since it is larger than the sum of its proper divisors (299651).

729085 is a wasteful number, since it uses less digits than its factorization.

729085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 729085 is about 853.8647433874. The cubic root of 729085 is about 90.0034978064.

It can be divided in two parts, 7 and 29085, that added together give a palindrome (29092).

The spelling of 729085 in words is "seven hundred twenty-nine thousand, eighty-five".