9900923 has 2 divisors, whose sum is σ = 9900924. Its totient is φ = 9900922.

The previous prime is 9900907. The next prime is 9900931. The reversal of 9900923 is 3290099.

9900923 is digitally balanced in base 3, 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 not a de Polignac number, because 9900923 - 2⁴ = 9900907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9900923.

It is not a weakly prime, because it can be changed into another prime (9900623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4950461 + 4950462.

It is an arithmetic number, because the mean of its divisors is an integer number (4950462).

Almost surely, 2^9900923 is an apocalyptic number.

9900923 is a deficient number, since it is larger than the sum of its proper divisors (1).

9900923 is an equidigital number, since it uses as much as digits as its factorization.

9900923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 9900923 is about 3146.5732154202. The cubic root of 9900923 is about 214.7295897333.

The spelling of 9900923 in words is "nine million, nine hundred thousand, nine hundred twenty-three".