9797662171 has 4 divisors (see below), whose sum is σ = 10688358744. Its totient is φ = 8906965600.

The previous prime is 9797662169. The next prime is 9797662229. The reversal of 9797662171 is 1712667979.

9797662171 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1712667979 = 11 ⋅155697089.

It is a cyclic number.

It is not a de Polignac number, because 9797662171 - 2¹ = 9797662169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9797662141) 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, 445348270 + ... + 445348291.

It is an arithmetic number, because the mean of its divisors is an integer number (2672089686).

Almost surely, 2^9797662171 is an apocalyptic number.

9797662171 is a deficient number, since it is larger than the sum of its proper divisors (890696573).

9797662171 is a wasteful number, since it uses less digits than its factorization.

9797662171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890696572.

The product of its digits is 2000376, while the sum is 55.

The square root of 9797662171 is about 98983.1408422667. The cubic root of 9797662171 is about 2139.8047810827.

The spelling of 9797662171 in words is "nine billion, seven hundred ninety-seven million, six hundred sixty-two thousand, one hundred seventy-one".