729708 has 72 divisors (see below), whose sum is σ = 2125872. Its totient is φ = 193536.

The previous prime is 729689. The next prime is 729713. The reversal of 729708 is 807927.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9960 + ... + 10032.

It is an arithmetic number, because the mean of its divisors is an integer number (29526).

2⁷²⁹⁷⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 729708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062936).

729708 is an abundant number, since it is smaller than the sum of its proper divisors (1396164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729708 is a wasteful number, since it uses less digits than its factorization.

729708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 729708 is about 854.2294773654. The cubic root of 729708 is about 90.0291263754.

The spelling of 729708 in words is "seven hundred twenty-nine thousand, seven hundred eight".