8730009 has 12 divisors (see below), whose sum is σ = 12682800. Its totient is φ = 5786424.

The previous prime is 8729999. The next prime is 8730013. The reversal of 8730009 is 9000378.

It is a happy number.

It is not a de Polignac number, because 8730009 - 2⁵ = 8729977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8730049) 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 in 11 ways as a sum of consecutive naturals, for example, 1099 + ... + 4320.

It is an arithmetic number, because the mean of its divisors is an integer number (1056900).

Almost surely, 2^8730009 is an apocalyptic number.

It is an amenable number.

8730009 is a deficient number, since it is larger than the sum of its proper divisors (3952791).

8730009 is a wasteful number, since it uses less digits than its factorization.

8730009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604 (or 5601 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 8730009 is about 2954.6588635577. The cubic root of 8730009 is about 205.9072146319.

The spelling of 8730009 in words is "eight million, seven hundred thirty thousand, nine".