729322 has 8 divisors (see below), whose sum is σ = 1193472. Its totient is φ = 331500.

The previous prime is 729301. The next prime is 729329. The reversal of 729322 is 223927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (729329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16554 + ... + 16597.

It is an arithmetic number, because the mean of its divisors is an integer number (149184).

2⁷²⁹³²² is an apocalyptic number.

729322 is a deficient number, since it is larger than the sum of its proper divisors (464150).

729322 is a wasteful number, since it uses less digits than its factorization.

729322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33164.

The product of its digits is 1512, while the sum is 25.

The square root of 729322 is about 854.0035128733. The cubic root of 729322 is about 90.0132490783.

The spelling of 729322 in words is "seven hundred twenty-nine thousand, three hundred twenty-two".