8669009 has 4 divisors (see below), whose sum is σ = 8853504. Its totient is φ = 8484516.

The previous prime is 8668993. The next prime is 8669027. The reversal of 8669009 is 9009668.

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 8669009 - 2⁴ = 8668993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8662009) 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, 92177 + ... + 92270.

It is an arithmetic number, because the mean of its divisors is an integer number (2213376).

Almost surely, 2^8669009 is an apocalyptic number.

It is an amenable number.

8669009 is a deficient number, since it is larger than the sum of its proper divisors (184495).

8669009 is a wasteful number, since it uses less digits than its factorization.

8669009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184494.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 8669009 is about 2944.3180874355. The cubic root of 8669009 is about 205.4265084126.

The spelling of 8669009 in words is "eight million, six hundred sixty-nine thousand, nine".