8717161 has 4 divisors (see below), whose sum is σ = 9096192. Its totient is φ = 8338132.

The previous prime is 8717131. The next prime is 8717171. The reversal of 8717161 is 1617178.

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: 1617178 = 2 ⋅808589.

It is a cyclic number.

It is not a de Polignac number, because 8717161 - 2¹³ = 8708969 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8717131) 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, 189481 + ... + 189526.

It is an arithmetic number, because the mean of its divisors is an integer number (2274048).

Almost surely, 2^8717161 is an apocalyptic number.

It is an amenable number.

8717161 is a deficient number, since it is larger than the sum of its proper divisors (379031).

8717161 is a wasteful number, since it uses less digits than its factorization.

8717161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379030.

The product of its digits is 2352, while the sum is 31.

The square root of 8717161 is about 2952.4838695580. The cubic root of 8717161 is about 205.8061534626.

The spelling of 8717161 in words is "eight million, seven hundred seventeen thousand, one hundred sixty-one".