9008281 has 2 divisors, whose sum is σ = 9008282. Its totient is φ = 9008280.

The previous prime is 9008269. The next prime is 9008303. The reversal of 9008281 is 1828009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9000000 + 8281 = 3000^2 + 91^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9008281 is a prime.

It is a super-2 number, since 2×9008281² = 162298253149922, which contains 22 as substring.

9008281 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9008221) 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, 4504140 + 4504141.

It is an arithmetic number, because the mean of its divisors is an integer number (4504141).

Almost surely, 2^9008281 is an apocalyptic number.

It is an amenable number.

9008281 is a deficient number, since it is larger than the sum of its proper divisors (1).

9008281 is an equidigital number, since it uses as much as digits as its factorization.

9008281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 9008281 is about 3001.3798493360. The cubic root of 9008281 is about 208.0721596897.

It can be divided in two parts, 900 and 8281, that multiplied together give a square (7452900 = 2730²).

The spelling of 9008281 in words is "nine million, eight thousand, two hundred eighty-one".