9803923 has 2 divisors, whose sum is σ = 9803924. Its totient is φ = 9803922.

The previous prime is 9803921. The next prime is 9803929. The reversal of 9803923 is 3293089.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9803923 - 2¹ = 9803921 is a prime.

It is a super-2 number, since 2×9803923² = 192233812379858, which contains 22 as substring.

Together with 9803921, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9803921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4901961 + 4901962.

It is an arithmetic number, because the mean of its divisors is an integer number (4901962).

Almost surely, 2^9803923 is an apocalyptic number.

9803923 is a deficient number, since it is larger than the sum of its proper divisors (1).

9803923 is an equidigital number, since it uses as much as digits as its factorization.

9803923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 9803923 is about 3131.1216839976. The cubic root of 9803923 is about 214.0260471396.

The spelling of 9803923 in words is "nine million, eight hundred three thousand, nine hundred twenty-three".