16986539 has 2 divisors, whose sum is σ = 16986540. Its totient is φ = 16986538.

The previous prime is 16986527. The next prime is 16986559. The reversal of 16986539 is 93568961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16986539 - 2⁸ = 16986283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16986493 and 16986502.

It is not a weakly prime, because it can be changed into another prime (16986559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8493269 + 8493270.

It is an arithmetic number, because the mean of its divisors is an integer number (8493270).

Almost surely, 2^16986539 is an apocalyptic number.

16986539 is a deficient number, since it is larger than the sum of its proper divisors (1).

16986539 is an equidigital number, since it uses as much as digits as its factorization.

16986539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 47.

The square root of 16986539 is about 4121.4729163249. The cubic root of 16986539 is about 257.0602744363.

The spelling of 16986539 in words is "sixteen million, nine hundred eighty-six thousand, five hundred thirty-nine".