9979164 has 36 divisors (see below), whose sum is σ = 27166776. Its totient is φ = 3070368.

The previous prime is 9979163. The next prime is 9979169. The reversal of 9979164 is 4619799.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10194 + ... + 11129.

Almost surely, 2^9979164 is an apocalyptic number.

It is an amenable number.

9979164 is an abundant number, since it is smaller than the sum of its proper divisors (17187612).

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

9979164 is a wasteful number, since it uses less digits than its factorization.

9979164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21346 (or 21341 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 9979164 is about 3158.9814814272. The cubic root of 9979164 is about 215.2937322872.

The spelling of 9979164 in words is "nine million, nine hundred seventy-nine thousand, one hundred sixty-four".