8418009 has 8 divisors (see below), whose sum is σ = 11884320. Its totient is φ = 5281856.

The previous prime is 8418001. The next prime is 8418013. The reversal of 8418009 is 9008148.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8418009 - 2³ = 8418001 is a prime.

It is an Ulam number.

8418009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8418001) 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, 82479 + ... + 82580.

It is an arithmetic number, because the mean of its divisors is an integer number (1485540).

Almost surely, 2^8418009 is an apocalyptic number.

It is an amenable number.

8418009 is a deficient number, since it is larger than the sum of its proper divisors (3466311).

8418009 is a wasteful number, since it uses less digits than its factorization.

8418009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165079.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8418009 is about 2901.3805334702. The cubic root of 8418009 is about 203.4244397481.

The spelling of 8418009 in words is "eight million, four hundred eighteen thousand, nine".