9868643 has 2 divisors, whose sum is σ = 9868644. Its totient is φ = 9868642.

The previous prime is 9868597. The next prime is 9868693. The reversal of 9868643 is 3468689.

9868643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9868643 is a prime.

It is a super-2 number, since 2×9868643² = 194780229322898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9868594 and 9868603.

It is not a weakly prime, because it can be changed into another prime (9868693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4934321 + 4934322.

It is an arithmetic number, because the mean of its divisors is an integer number (4934322).

Almost surely, 2^9868643 is an apocalyptic number.

9868643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9868643 is an equidigital number, since it uses as much as digits as its factorization.

9868643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 44.

The square root of 9868643 is about 3141.4396381277. The cubic root of 9868643 is about 214.4959745533.

The spelling of 9868643 in words is "nine million, eight hundred sixty-eight thousand, six hundred forty-three".