729043 has 4 divisors (see below), whose sum is σ = 833200. Its totient is φ = 624888.

The previous prime is 729041. The next prime is 729059. The reversal of 729043 is 340927.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 729043 - 2¹ = 729041 is a prime.

It is a Duffinian number.

729043 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 728999 and 729017.

It is not an unprimeable number, because it can be changed into a prime (729041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52068 + ... + 52081.

It is an arithmetic number, because the mean of its divisors is an integer number (208300).

2⁷²⁹⁰⁴³ is an apocalyptic number.

729043 is a deficient number, since it is larger than the sum of its proper divisors (104157).

729043 is a wasteful number, since it uses less digits than its factorization.

729043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104156.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 729043 is about 853.8401489740. The cubic root of 729043 is about 90.0017695125.

The spelling of 729043 in words is "seven hundred twenty-nine thousand, forty-three".