8818009 has 2 divisors, whose sum is σ = 8818010. Its totient is φ = 8818008.

The previous prime is 8817973. The next prime is 8818013. The reversal of 8818009 is 9008188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6744409 + 2073600 = 2597^2 + 1440^2 .

It is a cyclic number.

It is not a de Polignac number, because 8818009 - 2¹³ = 8809817 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (8818309) 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, 4409004 + 4409005.

It is an arithmetic number, because the mean of its divisors is an integer number (4409005).

Almost surely, 2^8818009 is an apocalyptic number.

It is an amenable number.

8818009 is a deficient number, since it is larger than the sum of its proper divisors (1).

8818009 is an equidigital number, since it uses as much as digits as its factorization.

8818009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 8818009 is about 2969.5132597784. The cubic root of 8818009 is about 206.5967629809.

The spelling of 8818009 in words is "eight million, eight hundred eighteen thousand, nine".