9320729 has 4 divisors (see below), whose sum is σ = 10168080. Its totient is φ = 8473380.

The previous prime is 9320719. The next prime is 9320741. The reversal of 9320729 is 9270239.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9320729 - 2²⁰ = 8272153 is a prime.

It is a super-3 number, since 3×9320729³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9320695 and 9320704.

It is not an unprimeable number, because it can be changed into a prime (9320719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423659 + ... + 423680.

It is an arithmetic number, because the mean of its divisors is an integer number (2542020).

Almost surely, 2^9320729 is an apocalyptic number.

It is an amenable number.

9320729 is a deficient number, since it is larger than the sum of its proper divisors (847351).

9320729 is a wasteful number, since it uses less digits than its factorization.

9320729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847350.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 9320729 is about 3052.9868981049. The cubic root of 9320729 is about 210.4504992467.

The spelling of 9320729 in words is "nine million, three hundred twenty thousand, seven hundred twenty-nine".