8993609 has 2 divisors, whose sum is σ = 8993610. Its totient is φ = 8993608.

The previous prime is 8993603. The next prime is 8993681. The reversal of 8993609 is 9063998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5626384 + 3367225 = 2372^2 + 1835^2 .

It is a cyclic number.

It is not a de Polignac number, because 8993609 - 2²⁰ = 7945033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8993609.

It is not a weakly prime, because it can be changed into another prime (8993603) 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, 4496804 + 4496805.

It is an arithmetic number, because the mean of its divisors is an integer number (4496805).

Almost surely, 2^8993609 is an apocalyptic number.

It is an amenable number.

8993609 is a deficient number, since it is larger than the sum of its proper divisors (1).

8993609 is an equidigital number, since it uses as much as digits as its factorization.

8993609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 8993609 is about 2998.9346441695. The cubic root of 8993609 is about 207.9591342917.

The spelling of 8993609 in words is "eight million, nine hundred ninety-three thousand, six hundred nine".