9816923 has 2 divisors, whose sum is σ = 9816924. Its totient is φ = 9816922.

The previous prime is 9816899. The next prime is 9816941. The reversal of 9816923 is 3296189.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9816923 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (9816953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4908461 + 4908462.

It is an arithmetic number, because the mean of its divisors is an integer number (4908462).

Almost surely, 2^9816923 is an apocalyptic number.

9816923 is a deficient number, since it is larger than the sum of its proper divisors (1).

9816923 is an equidigital number, since it uses as much as digits as its factorization.

9816923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 9816923 is about 3133.1969296551. The cubic root of 9816923 is about 214.1206048564.

The spelling of 9816923 in words is "nine million, eight hundred sixteen thousand, nine hundred twenty-three".