8473009 has 4 divisors (see below), whose sum is σ = 8552304. Its totient is φ = 8393716.

The previous prime is 8473001. The next prime is 8473027. The reversal of 8473009 is 9003748.

It is a happy number.

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 8473009 - 2³ = 8473001 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8473001) 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, 39487 + ... + 39700.

It is an arithmetic number, because the mean of its divisors is an integer number (2138076).

Almost surely, 2^8473009 is an apocalyptic number.

It is an amenable number.

8473009 is a deficient number, since it is larger than the sum of its proper divisors (79295).

8473009 is a wasteful number, since it uses less digits than its factorization.

8473009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79294.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 8473009 is about 2910.8433485847. The cubic root of 8473009 is about 203.8665104517.

The spelling of 8473009 in words is "eight million, four hundred seventy-three thousand, nine".