729834 has 16 divisors (see below), whose sum is σ = 1668288. Its totient is φ = 208512.

The previous prime is 729821. The next prime is 729851. The reversal of 729834 is 438927.

729834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 729795 and 729804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8647 + ... + 8730.

It is an arithmetic number, because the mean of its divisors is an integer number (104268).

2⁷²⁹⁸³⁴ is an apocalyptic number.

729834 is an abundant number, since it is smaller than the sum of its proper divisors (938454).

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

729834 is a wasteful number, since it uses less digits than its factorization.

729834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17389.

The product of its digits is 12096, while the sum is 33.

The square root of 729834 is about 854.3032248564. The cubic root of 729834 is about 90.0343079079.

The spelling of 729834 in words is "seven hundred twenty-nine thousand, eight hundred thirty-four".