9697841 has 4 divisors (see below), whose sum is σ = 9856884. Its totient is φ = 9538800.

The previous prime is 9697829. The next prime is 9697843. The reversal of 9697841 is 1487969.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1311025 + 8386816 = 1145^2 + 2896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9697841 is a prime.

It is a super-2 number, since 2×9697841² = 188096240122562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9697792 and 9697801.

It is not an unprimeable number, because it can be changed into a prime (9697843) 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, 79430 + ... + 79551.

It is an arithmetic number, because the mean of its divisors is an integer number (2464221).

Almost surely, 2^9697841 is an apocalyptic number.

It is an amenable number.

9697841 is a deficient number, since it is larger than the sum of its proper divisors (159043).

9697841 is a wasteful number, since it uses less digits than its factorization.

9697841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159042.

The product of its digits is 108864, while the sum is 44.

The square root of 9697841 is about 3114.1356746295. The cubic root of 9697841 is about 213.2512995683.

The spelling of 9697841 in words is "nine million, six hundred ninety-seven thousand, eight hundred forty-one".