9871164 has 18 divisors (see below), whose sum is σ = 24952200. Its totient is φ = 3290376.

The previous prime is 9871159. The next prime is 9871181. The reversal of 9871164 is 4611789.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 274199 = 9871164 / (9 + 8 + 7 + 1 + 1 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137064 + ... + 137135.

Almost surely, 2^9871164 is an apocalyptic number.

It is an amenable number.

9871164 is an abundant number, since it is smaller than the sum of its proper divisors (15081036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9871164 is a wasteful number, since it uses less digits than its factorization.

9871164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274209 (or 274204 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 9871164 is about 3141.8408616606. The cubic root of 9871164 is about 214.5142377300.

The spelling of 9871164 in words is "nine million, eight hundred seventy-one thousand, one hundred sixty-four".