8988281 has 2 divisors, whose sum is σ = 8988282. Its totient is φ = 8988280.

The previous prime is 8988277. The next prime is 8988337. The reversal of 8988281 is 1828898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6786025 + 2202256 = 2605^2 + 1484^2 .

It is a cyclic number.

It is not a de Polignac number, because 8988281 - 2² = 8988277 is a prime.

It is a super-2 number, since 2×8988281² = 161578390669922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8988241) 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, 4494140 + 4494141.

It is an arithmetic number, because the mean of its divisors is an integer number (4494141).

Almost surely, 2^8988281 is an apocalyptic number.

It is an amenable number.

8988281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8988281 is an equidigital number, since it uses as much as digits as its factorization.

8988281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 44.

The square root of 8988281 is about 2998.0461971090. The cubic root of 8988281 is about 207.9180597486.

It can be divided in two parts, 8988 and 281, that multiplied together give a triangular number (2525628 = T₂₂₄₇).

The spelling of 8988281 in words is "eight million, nine hundred eighty-eight thousand, two hundred eighty-one".