8681089 has 2 divisors, whose sum is σ = 8681090. Its totient is φ = 8681088.

The previous prime is 8681077. The next prime is 8681111. The reversal of 8681089 is 9801868.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 242064 = 2905^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 8681089 - 2¹³ = 8672897 is a prime.

It is a super-2 number, since 2×8681089² = 150722612451842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8681009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4340544 + 4340545.

It is an arithmetic number, because the mean of its divisors is an integer number (4340545).

Almost surely, 2^8681089 is an apocalyptic number.

It is an amenable number.

8681089 is a deficient number, since it is larger than the sum of its proper divisors (1).

8681089 is an equidigital number, since it uses as much as digits as its factorization.

8681089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 8681089 is about 2946.3687820774. The cubic root of 8681089 is about 205.5218826535.

The spelling of 8681089 in words is "eight million, six hundred eighty-one thousand, eighty-nine".