729566620 has 24 divisors (see below), whose sum is σ = 1538510400. Its totient is φ = 290603712.

The previous prime is 729566609. The next prime is 729566623. The reversal of 729566620 is 26665927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729566623) 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 7 ways as a sum of consecutive naturals, for example, 71535 + ... + 81094.

It is an arithmetic number, because the mean of its divisors is an integer number (64104600).

Almost surely, 2^729566620 is an apocalyptic number.

It is an amenable number.

729566620 is an abundant number, since it is smaller than the sum of its proper divisors (808943780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729566620 is a wasteful number, since it uses less digits than its factorization.

729566620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152877 (or 152875 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 729566620 is about 27010.4909248240. The cubic root of 729566620 is about 900.2331165680.

The spelling of 729566620 in words is "seven hundred twenty-nine million, five hundred sixty-six thousand, six hundred twenty".