729213 has 8 divisors (see below), whose sum is σ = 1003776. Its totient is φ = 470400.

The previous prime is 729203. The next prime is 729217. The reversal of 729213 is 312927.

729213 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 not a de Polignac number, because 729213 - 2⁹ = 728701 is a prime.

It is a Curzon number.

729213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729217) 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, 3828 + ... + 4013.

It is an arithmetic number, because the mean of its divisors is an integer number (125472).

2⁷²⁹²¹³ is an apocalyptic number.

It is an amenable number.

729213 is a deficient number, since it is larger than the sum of its proper divisors (274563).

729213 is a wasteful number, since it uses less digits than its factorization.

729213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7875.

The product of its digits is 756, while the sum is 24.

The square root of 729213 is about 853.9396934210. The cubic root of 729213 is about 90.0087645785.

The spelling of 729213 in words is "seven hundred twenty-nine thousand, two hundred thirteen".