23825917 has 2 divisors, whose sum is σ = 23825918. Its totient is φ = 23825916.

The previous prime is 23825899. The next prime is 23825933. The reversal of 23825917 is 71952832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22335076 + 1490841 = 4726^2 + 1221^2 .

It is a cyclic number.

It is not a de Polignac number, because 23825917 - 2¹¹ = 23823869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23825947) 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, 11912958 + 11912959.

It is an arithmetic number, because the mean of its divisors is an integer number (11912959).

Almost surely, 2^23825917 is an apocalyptic number.

It is an amenable number.

23825917 is a deficient number, since it is larger than the sum of its proper divisors (1).

23825917 is an equidigital number, since it uses as much as digits as its factorization.

23825917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 23825917 is about 4881.1798778574. The cubic root of 23825917 is about 287.7508011873.

It can be divided in two parts, 23825 and 917, that added together give a palindrome (24742).

The spelling of 23825917 in words is "twenty-three million, eight hundred twenty-five thousand, nine hundred seventeen".