9645872 has 10 divisors (see below), whose sum is σ = 18688908. Its totient is φ = 4822928.

The previous prime is 9645871. The next prime is 9645907. The reversal of 9645872 is 2785469.

It is not an unprimeable number, because it can be changed into a prime (9645871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301418 + ... + 301449.

Almost surely, 2^9645872 is an apocalyptic number.

It is an amenable number.

9645872 is a deficient number, since it is larger than the sum of its proper divisors (9043036).

9645872 is a wasteful number, since it uses less digits than its factorization.

9645872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602875 (or 602869 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 9645872 is about 3105.7804172221. The cubic root of 9645872 is about 212.8696918737.

The spelling of 9645872 in words is "nine million, six hundred forty-five thousand, eight hundred seventy-two".