5408309 has 2 divisors, whose sum is σ = 5408310. Its totient is φ = 5408308.

The previous prime is 5408233. The next prime is 5408311. The reversal of 5408309 is 9038045.

5408309 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4558225 + 850084 = 2135^2 + 922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5408309 is a prime.

Together with 5408311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5408509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2704154 + 2704155.

It is an arithmetic number, because the mean of its divisors is an integer number (2704155).

Almost surely, 2^5408309 is an apocalyptic number.

It is an amenable number.

5408309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5408309 is an equidigital number, since it uses as much as digits as its factorization.

5408309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 5408309 is about 2325.5771326705. The cubic root of 5408309 is about 175.5310021178.

The spelling of 5408309 in words is "five million, four hundred eight thousand, three hundred nine".