8800761721 has 2 divisors, whose sum is σ = 8800761722. Its totient is φ = 8800761720.

The previous prime is 8800761701. The next prime is 8800761737. The reversal of 8800761721 is 1271670088.

8800761721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8674873321 + 125888400 = 93139^2 + 11220^2 .

It is a cyclic number.

It is not a de Polignac number, because 8800761721 - 2¹¹ = 8800759673 is a prime.

It is not a weakly prime, because it can be changed into another prime (8800761701) 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, 4400380860 + 4400380861.

It is an arithmetic number, because the mean of its divisors is an integer number (4400380861).

Almost surely, 2^8800761721 is an apocalyptic number.

It is an amenable number.

8800761721 is a deficient number, since it is larger than the sum of its proper divisors (1).

8800761721 is an equidigital number, since it uses as much as digits as its factorization.

8800761721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 40.

The square root of 8800761721 is about 93812.3750951867. The cubic root of 8800761721 is about 2064.6197980912.

The spelling of 8800761721 in words is "eight billion, eight hundred million, seven hundred sixty-one thousand, seven hundred twenty-one".