5308309 has 4 divisors (see below), whose sum is σ = 5313100. Its totient is φ = 5303520.

The previous prime is 5308297. The next prime is 5308333. The reversal of 5308309 is 9038035.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9038035 = 5 ⋅1807607.

It can be written as a sum of positive squares in 2 ways, for example, as 178084 + 5130225 = 422^2 + 2265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5308309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5308379) 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, 217 + ... + 3265.

It is an arithmetic number, because the mean of its divisors is an integer number (1328275).

Almost surely, 2^5308309 is an apocalyptic number.

It is an amenable number.

5308309 is a deficient number, since it is larger than the sum of its proper divisors (4791).

5308309 is a wasteful number, since it uses less digits than its factorization.

5308309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 5308309 is about 2303.9767793969. The cubic root of 5308309 is about 174.4424048367.

The spelling of 5308309 in words is "five million, three hundred eight thousand, three hundred nine".