23993089 has 2 divisors, whose sum is σ = 23993090. Its totient is φ = 23993088.

The previous prime is 23993087. The next prime is 23993119. The reversal of 23993089 is 98039932.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22800625 + 1192464 = 4775^2 + 1092^2 .

It is a cyclic number.

It is not a de Polignac number, because 23993089 - 2¹ = 23993087 is a prime.

Together with 23993087, it forms a pair of twin primes.

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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11996544 + 11996545.

It is an arithmetic number, because the mean of its divisors is an integer number (11996545).

Almost surely, 2^23993089 is an apocalyptic number.

It is an amenable number.

23993089 is a deficient number, since it is larger than the sum of its proper divisors (1).

23993089 is an equidigital number, since it uses as much as digits as its factorization.

23993089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 23993089 is about 4898.2740837973. The cubic root of 23993089 is about 288.4222242180.

The spelling of 23993089 in words is "twenty-three million, nine hundred ninety-three thousand, eighty-nine".