729039 has 8 divisors (see below), whose sum is σ = 976000. Its totient is φ = 484056.

The previous prime is 729037. The next prime is 729041. The reversal of 729039 is 930927.

It is an interprime number because it is at equal distance from previous prime (729037) and next prime (729041).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 729039 - 2¹ = 729037 is a prime.

It is a Duffinian number.

729039 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 728997 and 729015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212 + ... + 1710.

It is an arithmetic number, because the mean of its divisors is an integer number (122000).

2⁷²⁹⁰³⁹ is an apocalyptic number.

729039 is a deficient number, since it is larger than the sum of its proper divisors (246961).

729039 is a wasteful number, since it uses less digits than its factorization.

729039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 729039 is about 853.8378066120. The cubic root of 729039 is about 90.0016049097.

The spelling of 729039 in words is "seven hundred twenty-nine thousand, thirty-nine".