729799 has 8 divisors (see below), whose sum is σ = 841248. Its totient is φ = 620160.

The previous prime is 729791. The next prime is 729821. The reversal of 729799 is 997927.

729799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 729799 - 2³ = 729791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729791) 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, 579 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (105156).

2⁷²⁹⁷⁹⁹ is an apocalyptic number.

729799 is a deficient number, since it is larger than the sum of its proper divisors (111449).

729799 is a wasteful number, since it uses less digits than its factorization.

729799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905.

The product of its digits is 71442, while the sum is 43.

The square root of 729799 is about 854.2827400808. The cubic root of 729799 is about 90.0328686531.

It can be divided in two parts, 7297 and 99, that added together give a square (7396 = 86²).

The spelling of 729799 in words is "seven hundred twenty-nine thousand, seven hundred ninety-nine".