9717912 has 48 divisors (see below), whose sum is σ = 26704080. Its totient is φ = 3192000.

The previous prime is 9717901. The next prime is 9717919. The reversal of 9717912 is 2197179.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9717919) 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, 4162 + ... + 6062.

It is an arithmetic number, because the mean of its divisors is an integer number (556335).

Almost surely, 2^9717912 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 9717912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13352040).

9717912 is an abundant number, since it is smaller than the sum of its proper divisors (16986168).

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

9717912 is a wasteful number, since it uses less digits than its factorization.

9717912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1977 counting only the distinct ones).

The product of its digits is 7938, while the sum is 36.

The square root of 9717912 is about 3117.3565724825. The cubic root of 9717912 is about 213.3983157075.

The spelling of 9717912 in words is "nine million, seven hundred seventeen thousand, nine hundred twelve".