9720773 has 2 divisors, whose sum is σ = 9720774. Its totient is φ = 9720772.

The previous prime is 9720769. The next prime is 9720791. The reversal of 9720773 is 3770279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9132484 + 588289 = 3022^2 + 767^2 .

It is an emirp because it is prime and its reverse (3770279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9720773 - 2² = 9720769 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9720673) 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, 4860386 + 4860387.

It is an arithmetic number, because the mean of its divisors is an integer number (4860387).

Almost surely, 2^9720773 is an apocalyptic number.

It is an amenable number.

9720773 is a deficient number, since it is larger than the sum of its proper divisors (1).

9720773 is an equidigital number, since it uses as much as digits as its factorization.

9720773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 35.

The square root of 9720773 is about 3117.8154210921. The cubic root of 9720773 is about 213.4192554827.

The spelling of 9720773 in words is "nine million, seven hundred twenty thousand, seven hundred seventy-three".