23088809 has 2 divisors, whose sum is σ = 23088810. Its totient is φ = 23088808.

The previous prime is 23088799. The next prime is 23088811. The reversal of 23088809 is 90888032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23088025 + 784 = 4805^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 23088809 - 2¹² = 23084713 is a prime.

Together with 23088811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23088829) 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, 11544404 + 11544405.

It is an arithmetic number, because the mean of its divisors is an integer number (11544405).

Almost surely, 2^23088809 is an apocalyptic number.

It is an amenable number.

23088809 is a deficient number, since it is larger than the sum of its proper divisors (1).

23088809 is an equidigital number, since it uses as much as digits as its factorization.

23088809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 23088809 is about 4805.0815809932. The cubic root of 23088809 is about 284.7522582898.

The spelling of 23088809 in words is "twenty-three million, eighty-eight thousand, eight hundred nine".