23905001 has 2 divisors, whose sum is σ = 23905002. Its totient is φ = 23905000.

The previous prime is 23904973. The next prime is 23905039. The reversal of 23905001 is 10050932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23814400 + 90601 = 4880^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 23905001 - 2¹⁰ = 23903977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23905051) 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, 11952500 + 11952501.

It is an arithmetic number, because the mean of its divisors is an integer number (11952501).

Almost surely, 2^23905001 is an apocalyptic number.

It is an amenable number.

23905001 is a deficient number, since it is larger than the sum of its proper divisors (1).

23905001 is an equidigital number, since it uses as much as digits as its factorization.

23905001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 23905001 is about 4889.2740769975. The cubic root of 23905001 is about 288.0688211623.

Adding to 23905001 its reverse (10050932), we get a palindrome (33955933).

The spelling of 23905001 in words is "twenty-three million, nine hundred five thousand, one".