23195993 has 2 divisors, whose sum is σ = 23195994. Its totient is φ = 23195992.

The previous prime is 23195959. The next prime is 23196011. The reversal of 23195993 is 39959132.

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., 13191424 + 10004569 = 3632^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 23195993 - 2¹⁸ = 22933849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23195993.

It is not a weakly prime, because it can be changed into another prime (23195593) 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, 11597996 + 11597997.

It is an arithmetic number, because the mean of its divisors is an integer number (11597997).

Almost surely, 2^23195993 is an apocalyptic number.

It is an amenable number.

23195993 is a deficient number, since it is larger than the sum of its proper divisors (1).

23195993 is an equidigital number, since it uses as much as digits as its factorization.

23195993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65610, while the sum is 41.

The square root of 23195993 is about 4816.2218595077. The cubic root of 23195993 is about 285.1922084977.

The spelling of 23195993 in words is "twenty-three million, one hundred ninety-five thousand, nine hundred ninety-three".