5318609 has 4 divisors (see below), whose sum is σ = 5332404. Its totient is φ = 5304816.

The previous prime is 5318591. The next prime is 5318647. The reversal of 5318609 is 9068135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9068135 = 5 ⋅1813627.

It can be written as a sum of positive squares in 2 ways, for example, as 1555009 + 3763600 = 1247^2 + 1940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5318609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5318659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6302 + ... + 7095.

It is an arithmetic number, because the mean of its divisors is an integer number (1333101).

Almost surely, 2^5318609 is an apocalyptic number.

It is an amenable number.

5318609 is a deficient number, since it is larger than the sum of its proper divisors (13795).

5318609 is a wasteful number, since it uses less digits than its factorization.

5318609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13794.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 5318609 is about 2306.2109617292. The cubic root of 5318609 is about 174.5551586287. Note that the first 3 decimals are identical.

The spelling of 5318609 in words is "five million, three hundred eighteen thousand, six hundred nine".