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9669 = 311293

9669 has 8 divisors (see below), whose sum is σ = 14112. Its totient is φ = 5840.

The previous prime is 9661. The next prime is 9677.

9669 is nontrivially palindromic in base 10.

9669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9661) and next prime (9677).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9669 - 23 = 9661 is a prime.

It is a super-2 number, since 2×96692 = 186979122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114 + ... + 179.

It is an arithmetic number, because the mean of its divisors is an integer number (1764).

29669 is an apocalyptic number.

It is an amenable number.

9669 is a deficient number, since it is larger than the sum of its proper divisors (4443).

9669 is a wasteful number, since it uses less digits than its factorization.

9669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its digits is 2916, while the sum is 30.

The square root of 9669 is about 98.3310734204. The cubic root of 9669 is about 21.3039689313.

The spelling of 9669 in words is "nine thousand, six hundred sixty-nine".

Divisors: 1 3 11 33 293 879 3223 9669