9973216 has 48 divisors (see below), whose sum is σ = 22181040. Its totient is φ = 4372480.

The previous prime is 9973213. The next prime is 9973217. The reversal of 9973216 is 6123799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9973211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9720 + ... + 10696.

It is an arithmetic number, because the mean of its divisors is an integer number (462105).

Almost surely, 2^9973216 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 9973216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11090520).

9973216 is an abundant number, since it is smaller than the sum of its proper divisors (12207824).

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

9973216 is a wasteful number, since it uses less digits than its factorization.

9973216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1019 counting only the distinct ones).

The product of its digits is 20412, while the sum is 37.

The square root of 9973216 is about 3158.0398984180. The cubic root of 9973216 is about 215.2509490898.

The spelling of 9973216 in words is "nine million, nine hundred seventy-three thousand, two hundred sixteen".