8548681 has 2 divisors, whose sum is σ = 8548682. Its totient is φ = 8548680.

The previous prime is 8548643. The next prime is 8548693. The reversal of 8548681 is 1868458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7338681 + 1210000 = 2709^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 8548681 - 2¹¹ = 8546633 is a prime.

It is a super-2 number, since 2×8548681² = 146159893679522, which contains 22 as substring.

8548681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8548621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4274340 + 4274341.

It is an arithmetic number, because the mean of its divisors is an integer number (4274341).

Almost surely, 2^8548681 is an apocalyptic number.

It is an amenable number.

8548681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8548681 is an equidigital number, since it uses as much as digits as its factorization.

8548681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 40.

The square root of 8548681 is about 2923.8127505023. The cubic root of 8548681 is about 204.4716196570.

It can be divided in two parts, 8548 and 681, that added together give a palindrome (9229).

The spelling of 8548681 in words is "eight million, five hundred forty-eight thousand, six hundred eighty-one".