9328729 has 2 divisors, whose sum is σ = 9328730. Its totient is φ = 9328728.

The previous prime is 9328723. The next prime is 9328747. The reversal of 9328729 is 9278239.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8838729 + 490000 = 2973^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 9328729 - 2¹³ = 9320537 is a prime.

9328729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9328691 and 9328700.

It is not a weakly prime, because it can be changed into another prime (9328723) 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 as a sum of consecutive naturals, namely, 4664364 + 4664365.

It is an arithmetic number, because the mean of its divisors is an integer number (4664365).

Almost surely, 2^9328729 is an apocalyptic number.

It is an amenable number.

9328729 is a deficient number, since it is larger than the sum of its proper divisors (1).

9328729 is an equidigital number, since it uses as much as digits as its factorization.

9328729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 9328729 is about 3054.2968094146. The cubic root of 9328729 is about 210.5106920544.

The spelling of 9328729 in words is "nine million, three hundred twenty-eight thousand, seven hundred twenty-nine".