729712089 has 12 divisors (see below), whose sum is σ = 1056050736. Its totient is φ = 485541432.

The previous prime is 729712001. The next prime is 729712103. The reversal of 729712089 is 980217927.

It is not a de Polignac number, because 729712089 - 2¹⁶ = 729646553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (729712289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72807 + ... + 82220.

It is an arithmetic number, because the mean of its divisors is an integer number (88004228).

Almost surely, 2^729712089 is an apocalyptic number.

It is an amenable number.

729712089 is a deficient number, since it is larger than the sum of its proper divisors (326338647).

729712089 is a wasteful number, since it uses less digits than its factorization.

729712089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155556 (or 155553 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 729712089 is about 27013.1836146723. The cubic root of 729712089 is about 900.2929453782.

The spelling of 729712089 in words is "seven hundred twenty-nine million, seven hundred twelve thousand, eighty-nine".