729126793 has 4 divisors (see below), whose sum is σ = 730309140. Its totient is φ = 727944448.

The previous prime is 729126781. The next prime is 729126809. The reversal of 729126793 is 397621927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397621927 = 47 ⋅8460041.

It can be written as a sum of positive squares in 2 ways, for example, as 8311689 + 720815104 = 2883^2 + 26848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729126793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729120793) 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 3 ways as a sum of consecutive naturals, for example, 590248 + ... + 591481.

It is an arithmetic number, because the mean of its divisors is an integer number (182577285).

Almost surely, 2^729126793 is an apocalyptic number.

It is an amenable number.

729126793 is a deficient number, since it is larger than the sum of its proper divisors (1182347).

729126793 is a wasteful number, since it uses less digits than its factorization.

729126793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182346.

The product of its digits is 285768, while the sum is 46.

The square root of 729126793 is about 27002.3479164313. The cubic root of 729126793 is about 900.0521751645.

The spelling of 729126793 in words is "seven hundred twenty-nine million, one hundred twenty-six thousand, seven hundred ninety-three".