729285231 has 8 divisors (see below), whose sum is σ = 972817200. Its totient is φ = 485971712.

The previous prime is 729285211. The next prime is 729285241. The reversal of 729285231 is 132582927.

729285231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 729285231 - 2⁹ = 729284719 is a prime.

It is a super-2 number, since 2×729285231² = 1063713896309446722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 729285231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729285211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46656 + ... + 60293.

It is an arithmetic number, because the mean of its divisors is an integer number (121602150).

Almost surely, 2^729285231 is an apocalyptic number.

729285231 is a deficient number, since it is larger than the sum of its proper divisors (243531969).

729285231 is a wasteful number, since it uses less digits than its factorization.

729285231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109225.

The product of its digits is 60480, while the sum is 39.

The square root of 729285231 is about 27005.2815389879. The cubic root of 729285231 is about 900.1173637070.

The spelling of 729285231 in words is "seven hundred twenty-nine million, two hundred eighty-five thousand, two hundred thirty-one".