9857161 has 8 divisors (see below), whose sum is σ = 10536480. Its totient is φ = 9188928.

The previous prime is 9857153. The next prime is 9857167. The reversal of 9857161 is 1617589.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9857161 - 2³ = 9857153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9857161.

It is not an unprimeable number, because it can be changed into a prime (9857167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891 + ... + 4528.

It is an arithmetic number, because the mean of its divisors is an integer number (1317060).

Almost surely, 2^9857161 is an apocalyptic number.

It is an amenable number.

9857161 is a deficient number, since it is larger than the sum of its proper divisors (679319).

9857161 is a wasteful number, since it uses less digits than its factorization.

9857161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543.

The product of its digits is 15120, while the sum is 37.

The square root of 9857161 is about 3139.6116001824. The cubic root of 9857161 is about 214.4127547848.

The spelling of 9857161 in words is "nine million, eight hundred fifty-seven thousand, one hundred sixty-one".