5008009 has 2 divisors, whose sum is σ = 5008010. Its totient is φ = 5008008.

The previous prime is 5008007. The next prime is 5008021. The reversal of 5008009 is 9008005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 2334784 = 1635^2 + 1528^2 .

It is a cyclic number.

It is not a de Polignac number, because 5008009 - 2¹ = 5008007 is a prime.

Together with 5008007, it forms a pair of twin primes.

5008009 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5008007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2504004 + 2504005.

It is an arithmetic number, because the mean of its divisors is an integer number (2504005).

Almost surely, 2^5008009 is an apocalyptic number.

It is an amenable number.

5008009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5008009 is an equidigital number, since it uses as much as digits as its factorization.

5008009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 5008009 is about 2237.8581277641. The cubic root of 5008009 is about 171.0888472779.

The spelling of 5008009 in words is "five million, eight thousand, nine".