17308939 has 2 divisors, whose sum is σ = 17308940. Its totient is φ = 17308938.

The previous prime is 17308937. The next prime is 17308999. The reversal of 17308939 is 93980371.

It is a weak prime.

It is an emirp because it is prime and its reverse (93980371) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17308939 - 2¹ = 17308937 is a prime.

Together with 17308937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (17308931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8654469 + 8654470.

It is an arithmetic number, because the mean of its divisors is an integer number (8654470).

Almost surely, 2^17308939 is an apocalyptic number.

17308939 is a deficient number, since it is larger than the sum of its proper divisors (1).

17308939 is an equidigital number, since it uses as much as digits as its factorization.

17308939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 17308939 is about 4160.4013027591. The cubic root of 17308939 is about 258.6764045014.

The spelling of 17308939 in words is "seventeen million, three hundred eight thousand, nine hundred thirty-nine".