8965009 has 4 divisors (see below), whose sum is σ = 9354816. Its totient is φ = 8575204.

The previous prime is 8965007. The next prime is 8965013. The reversal of 8965009 is 9005698.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8965009 - 2¹ = 8965007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8965007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194869 + ... + 194914.

It is an arithmetic number, because the mean of its divisors is an integer number (2338704).

Almost surely, 2^8965009 is an apocalyptic number.

It is an amenable number.

8965009 is a deficient number, since it is larger than the sum of its proper divisors (389807).

8965009 is a wasteful number, since it uses less digits than its factorization.

8965009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389806.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 8965009 is about 2994.1624872408. The cubic root of 8965009 is about 207.7384610350.

The spelling of 8965009 in words is "eight million, nine hundred sixty-five thousand, nine".