7989320723 has 2 divisors, whose sum is σ = 7989320724. Its totient is φ = 7989320722.

The previous prime is 7989320683. The next prime is 7989320737. The reversal of 7989320723 is 3270239897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7989320723 - 2³⁰ = 6915578899 is a prime.

It is a super-2 number, since 2×7989320723² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7989320123) 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 as a sum of consecutive naturals, namely, 3994660361 + 3994660362.

It is an arithmetic number, because the mean of its divisors is an integer number (3994660362).

Almost surely, 2^7989320723 is an apocalyptic number.

7989320723 is a deficient number, since it is larger than the sum of its proper divisors (1).

7989320723 is an equidigital number, since it uses as much as digits as its factorization.

7989320723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The square root of 7989320723 is about 89383.0001901928. Note that the first 3 decimals coincide. The cubic root of 7989320723 is about 1999.1096639597.

The spelling of 7989320723 in words is "seven billion, nine hundred eighty-nine million, three hundred twenty thousand, seven hundred twenty-three".