9869643 has 24 divisors (see below), whose sum is σ = 16694496. Its totient is φ = 5500800.

The previous prime is 9869641. The next prime is 9869663. The reversal of 9869643 is 3469689.

9869643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9869643 - 2¹ = 9869641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9869641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 673 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (695604).

Almost surely, 2^9869643 is an apocalyptic number.

9869643 is a deficient number, since it is larger than the sum of its proper divisors (6824853).

9869643 is a wasteful number, since it uses less digits than its factorization.

9869643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875 (or 3872 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 9869643 is about 3141.5987967912. The cubic root of 9869643 is about 214.5032193430.

The spelling of 9869643 in words is "nine million, eight hundred sixty-nine thousand, six hundred forty-three".