729212229 has 48 divisors (see below), whose sum is σ = 1183178880. Its totient is φ = 430064640.

The previous prime is 729212219. The next prime is 729212251. The reversal of 729212229 is 922212927.

It is not a de Polignac number, because 729212229 - 2²⁵ = 695657797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 729212193 and 729212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729212219) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 397344 + ... + 399174.

It is an arithmetic number, because the mean of its divisors is an integer number (24649560).

Almost surely, 2^729212229 is an apocalyptic number.

It is an amenable number.

729212229 is a deficient number, since it is larger than the sum of its proper divisors (453966651).

729212229 is a wasteful number, since it uses less digits than its factorization.

729212229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010 (or 2007 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 729212229 is about 27003.9298806674. The cubic root of 729212229 is about 900.0873285631.

The spelling of 729212229 in words is "seven hundred twenty-nine million, two hundred twelve thousand, two hundred twenty-nine".