729222205 has 8 divisors (see below), whose sum is σ = 875404800. Its totient is φ = 583152336.

The previous prime is 729222173. The next prime is 729222211. The reversal of 729222205 is 502222927.

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

It is a cyclic number.

It is not a de Polignac number, because 729222205 - 2⁵ = 729222173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13225 + ... + 40414.

It is an arithmetic number, because the mean of its divisors is an integer number (109425600).

Almost surely, 2^729222205 is an apocalyptic number.

It is an amenable number.

729222205 is a deficient number, since it is larger than the sum of its proper divisors (146182595).

729222205 is a wasteful number, since it uses less digits than its factorization.

729222205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56363.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 729222205 is about 27004.1145938911. The cubic root of 729222205 is about 900.0914330976.

The spelling of 729222205 in words is "seven hundred twenty-nine million, two hundred twenty-two thousand, two hundred five".