729052 has 12 divisors (see below), whose sum is σ = 1289680. Its totient is φ = 360576.

The previous prime is 729041. The next prime is 729059. The reversal of 729052 is 250927.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729059) by changing a digit.

729052 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552 + ... + 1327.

2⁷²⁹⁰⁵² is an apocalyptic number.

It is an amenable number.

729052 is a deficient number, since it is larger than the sum of its proper divisors (560628).

729052 is a wasteful number, since it uses less digits than its factorization.

729052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 729052 is about 853.8454192651. The cubic root of 729052 is about 90.0021398668.

Adding to 729052 its reverse (250927), we get a palindrome (979979).

The spelling of 729052 in words is "seven hundred twenty-nine thousand, fifty-two".