9877643 has 2 divisors, whose sum is σ = 9877644. Its totient is φ = 9877642.

The previous prime is 9877633. The next prime is 9877667. The reversal of 9877643 is 3467789.

9877643 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 not a de Polignac number, because 9877643 - 2⁴ = 9877627 is a prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9877594 and 9877603.

It is not a weakly prime, because it can be changed into another prime (9877613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4938821 + 4938822.

It is an arithmetic number, because the mean of its divisors is an integer number (4938822).

Almost surely, 2^9877643 is an apocalyptic number.

9877643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9877643 is an equidigital number, since it uses as much as digits as its factorization.

9877643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 9877643 is about 3142.8717759400. The cubic root of 9877643 is about 214.5611600511.

The spelling of 9877643 in words is "nine million, eight hundred seventy-seven thousand, six hundred forty-three".