8908609 has 4 divisors (see below), whose sum is σ = 8928900. Its totient is φ = 8888320.

The previous prime is 8908591. The next prime is 8908619. The reversal of 8908609 is 9068098.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2002225 + 6906384 = 1415^2 + 2628^2 .

It is a cyclic number.

It is not a de Polignac number, because 8908609 - 2¹¹ = 8906561 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a deceptive number, since it divides R_8908608.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8908619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9472 + ... + 10369.

It is an arithmetic number, because the mean of its divisors is an integer number (2232225).

Almost surely, 2^8908609 is an apocalyptic number.

It is an amenable number.

8908609 is a deficient number, since it is larger than the sum of its proper divisors (20291).

8908609 is a wasteful number, since it uses less digits than its factorization.

8908609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20290.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 8908609 is about 2984.7293009585. The cubic root of 8908609 is about 207.3019080126.

The spelling of 8908609 in words is "eight million, nine hundred eight thousand, six hundred nine".