7720330073 has 2 divisors, whose sum is σ = 7720330074. Its totient is φ = 7720330072.

The previous prime is 7720330067. The next prime is 7720330081. The reversal of 7720330073 is 3700330277.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7105141264 + 615188809 = 84292^2 + 24803^2 .

It is a cyclic number.

It is not a de Polignac number, because 7720330073 - 2¹⁰ = 7720329049 is a prime.

It is not a weakly prime, because it can be changed into another prime (7720330973) 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, 3860165036 + 3860165037.

It is an arithmetic number, because the mean of its divisors is an integer number (3860165037).

Almost surely, 2^7720330073 is an apocalyptic number.

It is an amenable number.

7720330073 is a deficient number, since it is larger than the sum of its proper divisors (1).

7720330073 is an equidigital number, since it uses as much as digits as its factorization.

7720330073 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 32.

The square root of 7720330073 is about 87865.4088535414. The cubic root of 7720330073 is about 1976.4171912791.

The spelling of 7720330073 in words is "seven billion, seven hundred twenty million, three hundred thirty thousand, seventy-three".