23406401 has 2 divisors, whose sum is σ = 23406402. Its totient is φ = 23406400.

The previous prime is 23406389. The next prime is 23406403. The reversal of 23406401 is 10460432.

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., 16008001 + 7398400 = 4001^2 + 2720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23406401 is a prime.

Together with 23406403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23406403) 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, 11703200 + 11703201.

It is an arithmetic number, because the mean of its divisors is an integer number (11703201).

Almost surely, 2^23406401 is an apocalyptic number.

It is an amenable number.

23406401 is a deficient number, since it is larger than the sum of its proper divisors (1).

23406401 is an equidigital number, since it uses as much as digits as its factorization.

23406401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 23406401 is about 4838.0162256859. The cubic root of 23406401 is about 286.0519287259.

Adding to 23406401 its reverse (10460432), we get a palindrome (33866833).

The spelling of 23406401 in words is "twenty-three million, four hundred six thousand, four hundred one".