729369 has 6 divisors (see below), whose sum is σ = 1053546. Its totient is φ = 486240.

The previous prime is 729367. The next prime is 729371. The reversal of 729369 is 963927.

729369 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (729367) and next prime (729371).

It can be written as a sum of positive squares in only one way, i.e., 632025 + 97344 = 795^2 + 312^2 .

It is not a de Polignac number, because 729369 - 2¹ = 729367 is a prime.

It is a super-2 number, since 2×729369² = 1063958276322, which contains 22 as substring.

729369 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (729367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40512 + ... + 40529.

It is an arithmetic number, because the mean of its divisors is an integer number (175591).

2⁷²⁹³⁶⁹ is an apocalyptic number.

It is an amenable number.

729369 is a deficient number, since it is larger than the sum of its proper divisors (324177).

729369 is a wasteful number, since it uses less digits than its factorization.

729369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81047 (or 81044 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 729369 is about 854.0310298812. The cubic root of 729369 is about 90.0151826238.

The spelling of 729369 in words is "seven hundred twenty-nine thousand, three hundred sixty-nine".