9681897 has 8 divisors (see below), whose sum is σ = 13034944. Its totient is φ = 6391728.

The previous prime is 9681883. The next prime is 9681899. The reversal of 9681897 is 7981869.

It is a happy number.

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

It is not a de Polignac number, because 9681897 - 2⁷ = 9681769 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9681899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15358 + ... + 15975.

It is an arithmetic number, because the mean of its divisors is an integer number (1629368).

Almost surely, 2^9681897 is an apocalyptic number.

It is an amenable number.

9681897 is a deficient number, since it is larger than the sum of its proper divisors (3353047).

9681897 is a wasteful number, since it uses less digits than its factorization.

9681897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31439.

The product of its digits is 217728, while the sum is 48.

The square root of 9681897 is about 3111.5746817327. The cubic root of 9681897 is about 213.1343682583.

The spelling of 9681897 in words is "nine million, six hundred eighty-one thousand, eight hundred ninety-seven".