9869689 has 4 divisors (see below), whose sum is σ = 9879156. Its totient is φ = 9860224.

The previous prime is 9869681. The next prime is 9869693.

9869689 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6335289 + 3534400 = 2517^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 9869689 - 2³ = 9869681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9869681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2944 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (2469789).

Almost surely, 2^9869689 is an apocalyptic number.

It is an amenable number.

9869689 is a deficient number, since it is larger than the sum of its proper divisors (9467).

9869689 is a wasteful number, since it uses less digits than its factorization.

9869689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9466.

The product of its digits is 1679616, while the sum is 55.

The square root of 9869689 is about 3141.6061178957. The cubic root of 9869689 is about 214.5035525916.

The spelling of 9869689 in words is "nine million, eight hundred sixty-nine thousand, six hundred eighty-nine".