729714561 has 16 divisors (see below), whose sum is σ = 986092800. Its totient is φ = 479945088.

The previous prime is 729714533. The next prime is 729714571. The reversal of 729714561 is 165417927.

It is a happy number.

It is not a de Polignac number, because 729714561 - 2¹⁸ = 729452417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (729714571) 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 15 ways as a sum of consecutive naturals, for example, 73485 + ... + 82821.

It is an arithmetic number, because the mean of its divisors is an integer number (61630800).

Almost surely, 2^729714561 is an apocalyptic number.

It is an amenable number.

729714561 is a deficient number, since it is larger than the sum of its proper divisors (256378239).

729714561 is a wasteful number, since it uses less digits than its factorization.

729714561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9688.

The product of its digits is 105840, while the sum is 42.

The square root of 729714561 is about 27013.2293700698. The cubic root of 729714561 is about 900.2939619991.

The spelling of 729714561 in words is "seven hundred twenty-nine million, seven hundred fourteen thousand, five hundred sixty-one".