9736729 has 2 divisors, whose sum is σ = 9736730. Its totient is φ = 9736728.

The previous prime is 9736717. The next prime is 9736747. The reversal of 9736729 is 9276379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8111104 + 1625625 = 2848^2 + 1275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9736729 is a prime.

It is not a weakly prime, because it can be changed into another prime (9730729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4868364 + 4868365.

It is an arithmetic number, because the mean of its divisors is an integer number (4868365).

Almost surely, 2^9736729 is an apocalyptic number.

It is an amenable number.

9736729 is a deficient number, since it is larger than the sum of its proper divisors (1).

9736729 is an equidigital number, since it uses as much as digits as its factorization.

9736729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 43.

The square root of 9736729 is about 3120.3732148575. The cubic root of 9736729 is about 213.5359628041.

The spelling of 9736729 in words is "nine million, seven hundred thirty-six thousand, seven hundred twenty-nine".