8240339 has 2 divisors, whose sum is σ = 8240340. Its totient is φ = 8240338.

The previous prime is 8240333. The next prime is 8240341. The reversal of 8240339 is 9330428.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8240339 - 2⁸ = 8240083 is a prime.

It is a Sophie Germain prime.

Together with 8240341, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8240333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4120169 + 4120170.

It is an arithmetic number, because the mean of its divisors is an integer number (4120170).

Almost surely, 2^8240339 is an apocalyptic number.

8240339 is a deficient number, since it is larger than the sum of its proper divisors (1).

8240339 is an equidigital number, since it uses as much as digits as its factorization.

8240339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 8240339 is about 2870.5990663971. The cubic root of 8240339 is about 201.9830966478.

The spelling of 8240339 in words is "eight million, two hundred forty thousand, three hundred thirty-nine".