729799227 has 18 divisors (see below), whose sum is σ = 1093828372. Its totient is φ = 486252072.

The previous prime is 729799219. The next prime is 729799229. The reversal of 729799227 is 722997927.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 729799227 - 2³ = 729799219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729799229) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 420253 + ... + 421985.

Almost surely, 2^729799227 is an apocalyptic number.

729799227 is a deficient number, since it is larger than the sum of its proper divisors (364029145).

729799227 is an frugal number, since it uses more digits than its factorization.

729799227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481 (or 1736 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 54.

The square root of 729799227 is about 27014.7964456518. The cubic root of 729799227 is about 900.3287798785.

The spelling of 729799227 in words is "seven hundred twenty-nine million, seven hundred ninety-nine thousand, two hundred twenty-seven".