339908609 has 2 divisors, whose sum is σ = 339908610. Its totient is φ = 339908608.

The previous prime is 339908587. The next prime is 339908717. The reversal of 339908609 is 906809933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226954225 + 112954384 = 15065^2 + 10628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-339908609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (339908509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169954304 + 169954305.

It is an arithmetic number, because the mean of its divisors is an integer number (169954305).

Almost surely, 2^339908609 is an apocalyptic number.

It is an amenable number.

339908609 is a deficient number, since it is larger than the sum of its proper divisors (1).

339908609 is an equidigital number, since it uses as much as digits as its factorization.

339908609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 339908609 is about 18436.6105615973. The cubic root of 339908609 is about 697.8906631640.

The spelling of 339908609 in words is "three hundred thirty-nine million, nine hundred eight thousand, six hundred nine".