729223225 has 12 divisors (see below), whose sum is σ = 904584960. Its totient is φ = 583154000.

The previous prime is 729223217. The next prime is 729223247. The reversal of 729223225 is 522322927.

729223225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 729223225 - 2³ = 729223217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98400 + ... + 105550.

It is an arithmetic number, because the mean of its divisors is an integer number (75382080).

Almost surely, 2^729223225 is an apocalyptic number.

It is an amenable number.

729223225 is a deficient number, since it is larger than the sum of its proper divisors (175361735).

729223225 is a wasteful number, since it uses less digits than its factorization.

729223225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11240 (or 11235 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 729223225 is about 27004.1334798953. The cubic root of 729223225 is about 900.0918527652.

The spelling of 729223225 in words is "seven hundred twenty-nine million, two hundred twenty-three thousand, two hundred twenty-five".