16707709 has 2 divisors, whose sum is σ = 16707710. Its totient is φ = 16707708.

The previous prime is 16707673. The next prime is 16707721. The reversal of 16707709 is 90770761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16426809 + 280900 = 4053^2 + 530^2 .

It is a cyclic number.

It is not a de Polignac number, because 16707709 - 2¹⁵ = 16674941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16707749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8353854 + 8353855.

It is an arithmetic number, because the mean of its divisors is an integer number (8353855).

Almost surely, 2^16707709 is an apocalyptic number.

It is an amenable number.

16707709 is a deficient number, since it is larger than the sum of its proper divisors (1).

16707709 is an equidigital number, since it uses as much as digits as its factorization.

16707709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 16707709 is about 4087.5064525943. The cubic root of 16707709 is about 255.6459797703.

The spelling of 16707709 in words is "sixteen million, seven hundred seven thousand, seven hundred nine".