23616013 has 2 divisors, whose sum is σ = 23616014. Its totient is φ = 23616012.

The previous prime is 23616001. The next prime is 23616029. The reversal of 23616013 is 31061632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21650409 + 1965604 = 4653^2 + 1402^2 .

It is a cyclic number.

It is not a de Polignac number, because 23616013 - 2⁵ = 23615981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23616413) 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, 11808006 + 11808007.

It is an arithmetic number, because the mean of its divisors is an integer number (11808007).

Almost surely, 2^23616013 is an apocalyptic number.

It is an amenable number.

23616013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23616013 is an equidigital number, since it uses as much as digits as its factorization.

23616013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23616013 is about 4859.6309530663. The cubic root of 23616013 is about 286.9032886478.

Adding to 23616013 its reverse (31061632), we get a palindrome (54677645).

The spelling of 23616013 in words is "twenty-three million, six hundred sixteen thousand, thirteen".