17040839 has 2 divisors, whose sum is σ = 17040840. Its totient is φ = 17040838.

The previous prime is 17040809. The next prime is 17040841. The reversal of 17040839 is 93804071.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17040839 is a prime.

Together with 17040841, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17040809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8520419 + 8520420.

It is an arithmetic number, because the mean of its divisors is an integer number (8520420).

Almost surely, 2^17040839 is an apocalyptic number.

17040839 is a deficient number, since it is larger than the sum of its proper divisors (1).

17040839 is an equidigital number, since it uses as much as digits as its factorization.

17040839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 17040839 is about 4128.0551110662. The cubic root of 17040839 is about 257.3338935634. Note that the first 3 decimals are identical.

The spelling of 17040839 in words is "seventeen million, forty thousand, eight hundred thirty-nine".