8613790321 has 2 divisors, whose sum is σ = 8613790322. Its totient is φ = 8613790320.

The previous prime is 8613790261. The next prime is 8613790363. The reversal of 8613790321 is 1230973168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7905165921 + 708624400 = 88911^2 + 26620^2 .

It is a cyclic number.

It is not a de Polignac number, because 8613790321 - 2¹¹ = 8613788273 is a prime.

It is not a weakly prime, because it can be changed into another prime (8613791321) 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, 4306895160 + 4306895161.

It is an arithmetic number, because the mean of its divisors is an integer number (4306895161).

Almost surely, 2^8613790321 is an apocalyptic number.

It is an amenable number.

8613790321 is a deficient number, since it is larger than the sum of its proper divisors (1).

8613790321 is an equidigital number, since it uses as much as digits as its factorization.

8613790321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 8613790321 is about 92810.5076001635. The cubic root of 8613790321 is about 2049.8941306421.

The spelling of 8613790321 in words is "eight billion, six hundred thirteen million, seven hundred ninety thousand, three hundred twenty-one".