8247615281 has 2 divisors, whose sum is σ = 8247615282. Its totient is φ = 8247615280.

The previous prime is 8247615269. The next prime is 8247615293. The reversal of 8247615281 is 1825167428.

8247615281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (8247615269) and next prime (8247615293).

It can be written as a sum of positive squares in only one way, i.e., 8241734656 + 5880625 = 90784^2 + 2425^2 .

It is a cyclic number.

It is not a de Polignac number, because 8247615281 - 2¹⁰ = 8247614257 is a prime.

It is a super-2 number, since 2×8247615281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8247615221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4123807640 + 4123807641.

It is an arithmetic number, because the mean of its divisors is an integer number (4123807641).

Almost surely, 2^8247615281 is an apocalyptic number.

It is an amenable number.

8247615281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8247615281 is an equidigital number, since it uses as much as digits as its factorization.

8247615281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 44.

The square root of 8247615281 is about 90816.3822280980. The cubic root of 8247615281 is about 2020.4253001984.

The spelling of 8247615281 in words is "eight billion, two hundred forty-seven million, six hundred fifteen thousand, two hundred eighty-one".