9888943 has 2 divisors, whose sum is σ = 9888944. Its totient is φ = 9888942.

The previous prime is 9888929. The next prime is 9888947. The reversal of 9888943 is 3498889.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9888943 is a prime.

9888943 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9888947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4944471 + 4944472.

It is an arithmetic number, because the mean of its divisors is an integer number (4944472).

Almost surely, 2^9888943 is an apocalyptic number.

9888943 is a deficient number, since it is larger than the sum of its proper divisors (1).

9888943 is an equidigital number, since it uses as much as digits as its factorization.

9888943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 49.

The square root of 9888943 is about 3144.6689809899. The cubic root of 9888943 is about 214.6429480222.

The spelling of 9888943 in words is "nine million, eight hundred eighty-eight thousand, nine hundred forty-three".