9919164 has 48 divisors (see below), whose sum is σ = 24498432. Its totient is φ = 3117312.

The previous prime is 9919097. The next prime is 9919183. The reversal of 9919164 is 4619199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22692 + ... + 23124.

It is an arithmetic number, because the mean of its divisors is an integer number (510384).

Almost surely, 2^9919164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9919164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12249216).

9919164 is an abundant number, since it is smaller than the sum of its proper divisors (14579268).

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

9919164 is a wasteful number, since it uses less digits than its factorization.

9919164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 544 counting only the distinct ones).

The product of its digits is 17496, while the sum is 39.

The square root of 9919164 is about 3149.4704316758. The cubic root of 9919164 is about 214.8613781022.

The spelling of 9919164 in words is "nine million, nine hundred nineteen thousand, one hundred sixty-four".