9817072 has 40 divisors (see below), whose sum is σ = 20514560. Its totient is φ = 4536000.

The previous prime is 9817063. The next prime is 9817103. The reversal of 9817072 is 2707189.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12697 + ... + 13447.

It is an arithmetic number, because the mean of its divisors is an integer number (512864).

Almost surely, 2^9817072 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 9817072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10257280).

9817072 is an abundant number, since it is smaller than the sum of its proper divisors (10697488).

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

9817072 is a wasteful number, since it uses less digits than its factorization.

9817072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 9817072 is about 3133.2207071957. The cubic root of 9817072 is about 214.1216881493.

The spelling of 9817072 in words is "nine million, eight hundred seventeen thousand, seventy-two".