23845117 has 2 divisors, whose sum is σ = 23845118. Its totient is φ = 23845116.

The previous prime is 23845111. The next prime is 23845141. The reversal of 23845117 is 71154832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 4713241 = 4374^2 + 2171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23845117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23845111) 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, 11922558 + 11922559.

It is an arithmetic number, because the mean of its divisors is an integer number (11922559).

Almost surely, 2^23845117 is an apocalyptic number.

It is an amenable number.

23845117 is a deficient number, since it is larger than the sum of its proper divisors (1).

23845117 is an equidigital number, since it uses as much as digits as its factorization.

23845117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 23845117 is about 4883.1462193959. The cubic root of 23845117 is about 287.8280746314.

Adding to 23845117 its reverse (71154832), we get a palindrome (94999949).

The spelling of 23845117 in words is "twenty-three million, eight hundred forty-five thousand, one hundred seventeen".