9995689 has 6 divisors (see below), whose sum is σ = 10987130. Its totient is φ = 9086880.

The previous prime is 9995683. The next prime is 9995701. The reversal of 9995689 is 9865999.

It can be written as a sum of positive squares in only one way, i.e., 6290064 + 3705625 = 2508^2 + 1925^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9995689 is a prime.

9995689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9995683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41184 + ... + 41425.

Almost surely, 2^9995689 is an apocalyptic number.

It is an amenable number.

9995689 is a deficient number, since it is larger than the sum of its proper divisors (991441).

9995689 is a wasteful number, since it uses less digits than its factorization.

9995689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82631 (or 82620 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 55.

The square root of 9995689 is about 3161.5959577403. The cubic root of 9995689 is about 215.4125053268.

The spelling of 9995689 in words is "nine million, nine hundred ninety-five thousand, six hundred eighty-nine".