4500009 has 8 divisors (see below), whose sum is σ = 6666720. Its totient is φ = 2999988.

The previous prime is 4500007. The next prime is 4500029. The reversal of 4500009 is 9000054.

It is not a de Polignac number, because 4500009 - 2¹ = 4500007 is a prime.

4500009 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4499964 and 4500000.

It is not an unprimeable number, because it can be changed into a prime (4500007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83307 + ... + 83360.

It is an arithmetic number, because the mean of its divisors is an integer number (833340).

Almost surely, 2^4500009 is an apocalyptic number.

It is an amenable number.

4500009 is a deficient number, since it is larger than the sum of its proper divisors (2166711).

4500009 is a wasteful number, since it uses less digits than its factorization.

4500009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166676 (or 166670 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 4500009 is about 2121.3224648789. The cubic root of 4500009 is about 165.0964725089.

The spelling of 4500009 in words is "four million, five hundred thousand, nine".