729227 has 4 divisors (see below), whose sum is σ = 743040. Its totient is φ = 715416.

The previous prime is 729217. The next prime is 729257. The reversal of 729227 is 722927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722927 = 59 ⋅12253.

It is a cyclic number.

It is not a de Polignac number, because 729227 - 2⁸ = 728971 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 729227.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 729227.

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 3 ways as a sum of consecutive naturals, for example, 6827 + ... + 6932.

It is an arithmetic number, because the mean of its divisors is an integer number (185760).

2⁷²⁹²²⁷ is an apocalyptic number.

729227 is a deficient number, since it is larger than the sum of its proper divisors (13813).

729227 is a wasteful number, since it uses less digits than its factorization.

729227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13812.

The product of its digits is 3528, while the sum is 29.

The square root of 729227 is about 853.9478906819. The cubic root of 729227 is about 90.0093405943.

The spelling of 729227 in words is "seven hundred twenty-nine thousand, two hundred twenty-seven".