9697856 has 28 divisors (see below), whose sum is σ = 21994368. Its totient is φ = 4156032.

The previous prime is 9697843. The next prime is 9697879. The reversal of 9697856 is 6587969.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-4 number, since 4×9697856⁴ (a number of 29 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10376 + ... + 11271.

Almost surely, 2^9697856 is an apocalyptic number.

It is an amenable number.

9697856 is an abundant number, since it is smaller than the sum of its proper divisors (12296512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9697856 is a wasteful number, since it uses less digits than its factorization.

9697856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21666 (or 21656 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

The square root of 9697856 is about 3114.1380830015. The cubic root of 9697856 is about 213.2514095160.

The spelling of 9697856 in words is "nine million, six hundred ninety-seven thousand, eight hundred fifty-six".