9645072 has 40 divisors (see below), whose sum is σ = 25501344. Its totient is φ = 3139584.

The previous prime is 9645067. The next prime is 9645079. The reversal of 9645072 is 2705469.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9645079) 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, 273 + ... + 4400.

Almost surely, 2^9645072 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 9645072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12750672).

9645072 is an abundant number, since it is smaller than the sum of its proper divisors (15856272).

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

9645072 is a wasteful number, since it uses less digits than its factorization.

9645072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727 (or 4721 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 9645072 is about 3105.6516224458. The cubic root of 9645072 is about 212.8638067842.

The spelling of 9645072 in words is "nine million, six hundred forty-five thousand, seventy-two".