729610223 has 2 divisors, whose sum is σ = 729610224. Its totient is φ = 729610222.

The previous prime is 729610177. The next prime is 729610229. The reversal of 729610223 is 322016927.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 729610223 - 2¹² = 729606127 is a prime.

It is a super-2 number, since 2×729610223² = 1064662155012219458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 729610223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729610229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364805111 + 364805112.

It is an arithmetic number, because the mean of its divisors is an integer number (364805112).

Almost surely, 2^729610223 is an apocalyptic number.

729610223 is a deficient number, since it is larger than the sum of its proper divisors (1).

729610223 is an equidigital number, since it uses as much as digits as its factorization.

729610223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 729610223 is about 27011.2980621073. The cubic root of 729610223 is about 900.2510505403.

The spelling of 729610223 in words is "seven hundred twenty-nine million, six hundred ten thousand, two hundred twenty-three".