9966769 has 2 divisors, whose sum is σ = 9966770. Its totient is φ = 9966768.

The previous prime is 9966721. The next prime is 9966791. The reversal of 9966769 is 9676699.

9966769 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5702544 + 4264225 = 2388^2 + 2065^2 .

It is an emirp because it is prime and its reverse (9676699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9966769 - 2¹⁹ = 9442481 is a prime.

It is a super-2 number, since 2×9966769² = 198672968598722, which contains 22 as substring.

9966769 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9966799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4983384 + 4983385.

It is an arithmetic number, because the mean of its divisors is an integer number (4983385).

Almost surely, 2^9966769 is an apocalyptic number.

It is an amenable number.

9966769 is a deficient number, since it is larger than the sum of its proper divisors (1).

9966769 is an equidigital number, since it uses as much as digits as its factorization.

9966769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 52.

The square root of 9966769 is about 3157.0190053277. The cubic root of 9966769 is about 215.2045574345.

The spelling of 9966769 in words is "nine million, nine hundred sixty-six thousand, seven hundred sixty-nine".