23840969 has 2 divisors, whose sum is σ = 23840970. Its totient is φ = 23840968.

The previous prime is 23840959. The next prime is 23840977. The reversal of 23840969 is 96904832.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23814400 + 26569 = 4880^2 + 163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23840969 is a prime.

It is a super-2 number, since 2×23840969² = 1136783605717922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23840909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11920484 + 11920485.

It is an arithmetic number, because the mean of its divisors is an integer number (11920485).

Almost surely, 2^23840969 is an apocalyptic number.

It is an amenable number.

23840969 is a deficient number, since it is larger than the sum of its proper divisors (1).

23840969 is an equidigital number, since it uses as much as digits as its factorization.

23840969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 23840969 is about 4882.7214747516. The cubic root of 23840969 is about 287.8113838614.

The spelling of 23840969 in words is "twenty-three million, eight hundred forty thousand, nine hundred sixty-nine".