9863923 has 2 divisors, whose sum is σ = 9863924. Its totient is φ = 9863922.

The previous prime is 9863851. The next prime is 9863933. The reversal of 9863923 is 3293689.

9863923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9863923 is a prime.

It is not a weakly prime, because it can be changed into another prime (9863933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4931961 + 4931962.

It is an arithmetic number, because the mean of its divisors is an integer number (4931962).

Almost surely, 2^9863923 is an apocalyptic number.

9863923 is a deficient number, since it is larger than the sum of its proper divisors (1).

9863923 is an equidigital number, since it uses as much as digits as its factorization.

9863923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 9863923 is about 3140.6883003571. The cubic root of 9863923 is about 214.4617725375.

The spelling of 9863923 in words is "nine million, eight hundred sixty-three thousand, nine hundred twenty-three".