9871697 has 16 divisors (see below), whose sum is σ = 11448000. Its totient is φ = 8418240.

The previous prime is 9871663. The next prime is 9871699. The reversal of 9871697 is 7961789.

9871697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9871697 - 2⁶ = 9871633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9871699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30983 + ... + 31299.

It is an arithmetic number, because the mean of its divisors is an integer number (715500).

Almost surely, 2^9871697 is an apocalyptic number.

It is an amenable number.

9871697 is a deficient number, since it is larger than the sum of its proper divisors (1576303).

9871697 is a wasteful number, since it uses less digits than its factorization.

9871697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496.

The product of its digits is 190512, while the sum is 47.

The square root of 9871697 is about 3141.9256833986. The cubic root of 9871697 is about 214.5180986064.

The spelling of 9871697 in words is "nine million, eight hundred seventy-one thousand, six hundred ninety-seven".