9973072 has 20 divisors (see below), whose sum is σ = 19947136. Its totient is φ = 4825440.

The previous prime is 9973057. The next prime is 9973079. The reversal of 9973072 is 2703799.

9973072 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9973079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9558 + ... + 10549.

Almost surely, 2^9973072 is an apocalyptic number.

It is an amenable number.

9973072 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9973072 is a wasteful number, since it uses less digits than its factorization.

9973072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20146 (or 20140 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 9973072 is about 3158.0170993837. The cubic root of 9973072 is about 215.2499131055.

The spelling of 9973072 in words is "nine million, nine hundred seventy-three thousand, seventy-two".