8816281 has 2 divisors, whose sum is σ = 8816282. Its totient is φ = 8816280.

The previous prime is 8816273. The next prime is 8816303. The reversal of 8816281 is 1826188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4473225 + 4343056 = 2115^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 8816281 - 2³ = 8816273 is a prime.

It is a super-2 number, since 2×8816281² = 155453621341922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8816201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4408140 + 4408141.

It is an arithmetic number, because the mean of its divisors is an integer number (4408141).

Almost surely, 2^8816281 is an apocalyptic number.

It is an amenable number.

8816281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8816281 is an equidigital number, since it uses as much as digits as its factorization.

8816281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 34.

The square root of 8816281 is about 2969.2222887484. Note that the first 4 decimals coincide. The cubic root of 8816281 is about 206.5832670195.

The spelling of 8816281 in words is "eight million, eight hundred sixteen thousand, two hundred eighty-one".