16716769 has 2 divisors, whose sum is σ = 16716770. Its totient is φ = 16716768.

The previous prime is 16716767. The next prime is 16716773. The reversal of 16716769 is 96761761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15116544 + 1600225 = 3888^2 + 1265^2 .

It is a cyclic number.

It is not a de Polignac number, because 16716769 - 2¹ = 16716767 is a prime.

It is a super-2 number, since 2×16716769² = 558900731598722, which contains 22 as substring.

Together with 16716767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16716761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358384 + 8358385.

It is an arithmetic number, because the mean of its divisors is an integer number (8358385).

Almost surely, 2^16716769 is an apocalyptic number.

It is an amenable number.

16716769 is a deficient number, since it is larger than the sum of its proper divisors (1).

16716769 is an equidigital number, since it uses as much as digits as its factorization.

16716769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 43.

The square root of 16716769 is about 4088.6145575243. The cubic root of 16716769 is about 255.6921806797.

The spelling of 16716769 in words is "sixteen million, seven hundred sixteen thousand, seven hundred sixty-nine".