16709239 has 2 divisors, whose sum is σ = 16709240. Its totient is φ = 16709238.

The previous prime is 16709219. The next prime is 16709309. The reversal of 16709239 is 93290761.

It is a weak prime.

It is an emirp because it is prime and its reverse (93290761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16709239 - 2¹⁷ = 16578167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16709198 and 16709207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16709219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8354619 + 8354620.

It is an arithmetic number, because the mean of its divisors is an integer number (8354620).

Almost surely, 2^16709239 is an apocalyptic number.

16709239 is a deficient number, since it is larger than the sum of its proper divisors (1).

16709239 is an equidigital number, since it uses as much as digits as its factorization.

16709239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 16709239 is about 4087.6936039777. The cubic root of 16709239 is about 255.6537830825.

The spelling of 16709239 in words is "sixteen million, seven hundred nine thousand, two hundred thirty-nine".