9207072 has 72 divisors (see below), whose sum is σ = 29929536. Its totient is φ = 2630016.

The previous prime is 9207071. The next prime is 9207089. The reversal of 9207072 is 2707029.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (9207071) 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, 268 + ... + 4299.

It is an arithmetic number, because the mean of its divisors is an integer number (415688).

Almost surely, 2^9207072 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 9207072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14964768).

9207072 is an abundant number, since it is smaller than the sum of its proper divisors (20722464).

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

9207072 is a wasteful number, since it uses less digits than its factorization.

9207072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590 (or 4579 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 9207072 is about 3034.3157383502. The cubic root of 9207072 is about 209.5915871767.

The spelling of 9207072 in words is "nine million, two hundred seven thousand, seventy-two".