729099 has 24 divisors (see below), whose sum is σ = 1228032. Its totient is φ = 408240.

The previous prime is 729073. The next prime is 729139. The reversal of 729099 is 990927.

It is not a de Polignac number, because 729099 - 2⁷ = 728971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4392 + ... + 4554.

It is an arithmetic number, because the mean of its divisors is an integer number (51168).

2⁷²⁹⁰⁹⁹ is an apocalyptic number.

729099 is a deficient number, since it is larger than the sum of its proper divisors (498933).

729099 is a wasteful number, since it uses less digits than its factorization.

729099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 729099 is about 853.8729413677. The cubic root of 729099 is about 90.0040738897.

The spelling of 729099 in words is "seven hundred twenty-nine thousand, ninety-nine".