729533 has 8 divisors (see below), whose sum is σ = 843840. Its totient is φ = 617760.

The previous prime is 729527. The next prime is 729551. The reversal of 729533 is 335927.

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 729533 - 2¹² = 725437 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7⁶ + 2¹¹ + 5⁷ + 9⁶ + 3³ + 3⁵ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 729496 and 729505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38 + ... + 1208.

It is an arithmetic number, because the mean of its divisors is an integer number (105480).

2⁷²⁹⁵³³ is an apocalyptic number.

It is an amenable number.

729533 is a deficient number, since it is larger than the sum of its proper divisors (114307).

729533 is a wasteful number, since it uses less digits than its factorization.

729533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267.

The product of its digits is 5670, while the sum is 29.

The square root of 729533 is about 854.1270397312. The cubic root of 729533 is about 90.0219288129.

The spelling of 729533 in words is "seven hundred twenty-nine thousand, five hundred thirty-three".