8817288281 has 2 divisors, whose sum is σ = 8817288282. Its totient is φ = 8817288280.

The previous prime is 8817288173. The next prime is 8817288299. The reversal of 8817288281 is 1828827188.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7371767881 + 1445520400 = 85859^2 + 38020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8817288281 is a prime.

It is a super-2 number, since 2×8817288281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8817288581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4408644140 + 4408644141.

It is an arithmetic number, because the mean of its divisors is an integer number (4408644141).

Almost surely, 2^8817288281 is an apocalyptic number.

It is an amenable number.

8817288281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8817288281 is an equidigital number, since it uses as much as digits as its factorization.

8817288281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 917504, while the sum is 53.

The square root of 8817288281 is about 93900.4168308107. The cubic root of 8817288281 is about 2065.9113426249.

The spelling of 8817288281 in words is "eight billion, eight hundred seventeen million, two hundred eighty-eight thousand, two hundred eighty-one".