9867161 has 4 divisors (see below), whose sum is σ = 10296192. Its totient is φ = 9438132.

The previous prime is 9867149. The next prime is 9867173. The reversal of 9867161 is 1617689.

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.

It is an interprime number because it is at equal distance from previous prime (9867149) and next prime (9867173).

It is a cyclic number.

It is not a de Polignac number, because 9867161 - 2²² = 5672857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9867761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214481 + ... + 214526.

It is an arithmetic number, because the mean of its divisors is an integer number (2574048).

Almost surely, 2^9867161 is an apocalyptic number.

It is an amenable number.

9867161 is a deficient number, since it is larger than the sum of its proper divisors (429031).

9867161 is a wasteful number, since it uses less digits than its factorization.

9867161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429030.

The product of its digits is 18144, while the sum is 38.

The square root of 9867161 is about 3141.2037501569. The cubic root of 9867161 is about 214.4852368748.

The spelling of 9867161 in words is "nine million, eight hundred sixty-seven thousand, one hundred sixty-one".