23000909 has 2 divisors, whose sum is σ = 23000910. Its totient is φ = 23000908.

The previous prime is 23000903. The next prime is 23000911. The reversal of 23000909 is 90900032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17825284 + 5175625 = 4222^2 + 2275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23000909 is a prime.

It is a Sophie Germain prime.

Together with 23000911, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23000903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500454 + 11500455.

It is an arithmetic number, because the mean of its divisors is an integer number (11500455).

Almost surely, 2^23000909 is an apocalyptic number.

It is an amenable number.

23000909 is a deficient number, since it is larger than the sum of its proper divisors (1).

23000909 is an equidigital number, since it uses as much as digits as its factorization.

23000909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 23000909 is about 4795.9262921776. The cubic root of 23000909 is about 284.3904444214.

The spelling of 23000909 in words is "twenty-three million, nine hundred nine", and thus it is an aban number.