23993087 has 2 divisors, whose sum is σ = 23993088. Its totient is φ = 23993086.

The previous prime is 23993083. The next prime is 23993089. The reversal of 23993087 is 78039932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23993087 - 2² = 23993083 is a prime.

Together with 23993089, 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 (23993083) 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, 11996543 + 11996544.

It is an arithmetic number, because the mean of its divisors is an integer number (11996544).

Almost surely, 2^23993087 is an apocalyptic number.

23993087 is a deficient number, since it is larger than the sum of its proper divisors (1).

23993087 is an equidigital number, since it uses as much as digits as its factorization.

23993087 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23993087 is about 4898.2738796437. The cubic root of 23993087 is about 288.4222162039.

The spelling of 23993087 in words is "twenty-three million, nine hundred ninety-three thousand, eighty-seven".