16716709 has 2 divisors, whose sum is σ = 16716710. Its totient is φ = 16716708.

The previous prime is 16716697. The next prime is 16716727. The reversal of 16716709 is 90761761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16176484 + 540225 = 4022^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 16716709 - 2¹⁵ = 16683941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16716769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358354 + 8358355.

It is an arithmetic number, because the mean of its divisors is an integer number (8358355).

Almost surely, 2^16716709 is an apocalyptic number.

It is an amenable number.

16716709 is a deficient number, since it is larger than the sum of its proper divisors (1).

16716709 is an equidigital number, since it uses as much as digits as its factorization.

16716709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 16716709 is about 4088.6072200690. The cubic root of 16716709 is about 255.6918747683.

The spelling of 16716709 in words is "sixteen million, seven hundred sixteen thousand, seven hundred nine".