729072844 has 12 divisors (see below), whose sum is σ = 1281354984. Its totient is φ = 362971424.

The previous prime is 729072821. The next prime is 729072857. The reversal of 729072844 is 448270927.

729072844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 729072844.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390202 + ... + 392065.

It is an arithmetic number, because the mean of its divisors is an integer number (106779582).

Almost surely, 2^729072844 is an apocalyptic number.

It is an amenable number.

729072844 is a deficient number, since it is larger than the sum of its proper divisors (552282140).

729072844 is a wasteful number, since it uses less digits than its factorization.

729072844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782504 (or 782502 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 729072844 is about 27001.3489292665. The cubic root of 729072844 is about 900.0299759563.

The spelling of 729072844 in words is "seven hundred twenty-nine million, seventy-two thousand, eight hundred forty-four".