9645500 has 48 divisors (see below), whose sum is σ = 21385728. Its totient is φ = 3800000.

The previous prime is 9645499. The next prime is 9645509. The reversal of 9645500 is 55469.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9645509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50405 + ... + 50595.

It is an arithmetic number, because the mean of its divisors is an integer number (445536).

Almost surely, 2^9645500 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 9645500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10692864).

9645500 is an abundant number, since it is smaller than the sum of its proper divisors (11740228).

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

9645500 is a wasteful number, since it uses less digits than its factorization.

9645500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 9645500 is about 3105.7205283155. The cubic root of 9645500 is about 212.8669553476.

The spelling of 9645500 in words is "nine million, six hundred forty-five thousand, five hundred".