729076 has 12 divisors (see below), whose sum is σ = 1287972. Its totient is φ = 361088.

The previous prime is 729073. The next prime is 729139. The reversal of 729076 is 670927.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 547600 = 426^2 + 740^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729073) 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, 355 + ... + 1258.

It is an arithmetic number, because the mean of its divisors is an integer number (107331).

2⁷²⁹⁰⁷⁶ is an apocalyptic number.

It is an amenable number.

729076 is a deficient number, since it is larger than the sum of its proper divisors (558896).

729076 is a wasteful number, since it uses less digits than its factorization.

729076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1728 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 729076 is about 853.8594732156. The cubic root of 729076 is about 90.0031274633.

The spelling of 729076 in words is "seven hundred twenty-nine thousand, seventy-six".