9189072 has 80 divisors (see below), whose sum is σ = 26784000. Its totient is φ = 3015936.

The previous prime is 9189071. The next prime is 9189077. The reversal of 9189072 is 2709819.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (9189071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38329 + ... + 38567.

It is an arithmetic number, because the mean of its divisors is an integer number (334800).

Almost surely, 2^9189072 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 9189072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13392000).

9189072 is an abundant number, since it is smaller than the sum of its proper divisors (17594928).

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

9189072 is a wasteful number, since it uses less digits than its factorization.

9189072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 9189072 is about 3031.3482149037. The cubic root of 9189072 is about 209.4549128979.

The spelling of 9189072 in words is "nine million, one hundred eighty-nine thousand, seventy-two".