9645849 has 6 divisors (see below), whose sum is σ = 13932906. Its totient is φ = 6430560.

The previous prime is 9645833. The next prime is 9645859. The reversal of 9645849 is 9485469.

It is a happy number.

9645849 is a `hidden beast` number, since 9 + 64 + 584 + 9 = 666.

9645849 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8020224 + 1625625 = 2832^2 + 1275^2 .

It is not a de Polignac number, because 9645849 - 2⁴ = 9645833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9645829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535872 + ... + 535889.

It is an arithmetic number, because the mean of its divisors is an integer number (2322151).

Almost surely, 2^9645849 is an apocalyptic number.

It is an amenable number.

9645849 is a deficient number, since it is larger than the sum of its proper divisors (4287057).

9645849 is a wasteful number, since it uses less digits than its factorization.

9645849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071767 (or 1071764 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 9645849 is about 3105.7767144468. The cubic root of 9645849 is about 212.8695226820.

The spelling of 9645849 in words is "nine million, six hundred forty-five thousand, eight hundred forty-nine".