9806897 has 4 divisors (see below), whose sum is σ = 9824880. Its totient is φ = 9788916.

The previous prime is 9806891. The next prime is 9806899. The reversal of 9806897 is 7986089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7986089 = 43 ⋅185723.

It is a cyclic number.

It is not a de Polignac number, because 9806897 - 2⁶ = 9806833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9806891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8147 + ... + 9272.

It is an arithmetic number, because the mean of its divisors is an integer number (2456220).

Almost surely, 2^9806897 is an apocalyptic number.

It is an amenable number.

9806897 is a deficient number, since it is larger than the sum of its proper divisors (17983).

9806897 is a wasteful number, since it uses less digits than its factorization.

9806897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17982.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 9806897 is about 3131.5965576683. The cubic root of 9806897 is about 214.0476864063.

The spelling of 9806897 in words is "nine million, eight hundred six thousand, eight hundred ninety-seven".