23491967 has 2 divisors, whose sum is σ = 23491968. Its totient is φ = 23491966.

The previous prime is 23491939. The next prime is 23491969. The reversal of 23491967 is 76919432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23491967 - 2⁶ = 23491903 is a prime.

Together with 23491969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23491969) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11745983 + 11745984.

It is an arithmetic number, because the mean of its divisors is an integer number (11745984).

Almost surely, 2^23491967 is an apocalyptic number.

23491967 is a deficient number, since it is larger than the sum of its proper divisors (1).

23491967 is an equidigital number, since it uses as much as digits as its factorization.

23491967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 41.

The square root of 23491967 is about 4846.8512459121. The cubic root of 23491967 is about 286.4000750015.

The spelling of 23491967 in words is "twenty-three million, four hundred ninety-one thousand, nine hundred sixty-seven".