23406413 has 2 divisors, whose sum is σ = 23406414. Its totient is φ = 23406412.

The previous prime is 23406407. The next prime is 23406431. The reversal of 23406413 is 31460432.

It is a happy number.

Together with next prime (23406431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23406244 + 169 = 4838^2 + 13^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23406413 is a prime.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11703206 + 11703207.

It is an arithmetic number, because the mean of its divisors is an integer number (11703207).

Almost surely, 2^23406413 is an apocalyptic number.

It is an amenable number.

23406413 is a deficient number, since it is larger than the sum of its proper divisors (1).

23406413 is an equidigital number, since it uses as much as digits as its factorization.

23406413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 23406413 is about 4838.0174658635. The cubic root of 23406413 is about 286.0519776103.

Adding to 23406413 its reverse (31460432), we get a palindrome (54866845).

The spelling of 23406413 in words is "twenty-three million, four hundred six thousand, four hundred thirteen".