23615623 has 2 divisors, whose sum is σ = 23615624. Its totient is φ = 23615622.

The previous prime is 23615621. The next prime is 23615629. The reversal of 23615623 is 32651632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23615623 - 2¹ = 23615621 is a prime.

Together with 23615621, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23615591 and 23615600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23615621) 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, 11807811 + 11807812.

It is an arithmetic number, because the mean of its divisors is an integer number (11807812).

Almost surely, 2^23615623 is an apocalyptic number.

23615623 is a deficient number, since it is larger than the sum of its proper divisors (1).

23615623 is an equidigital number, since it uses as much as digits as its factorization.

23615623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 23615623 is about 4859.5908263968. The cubic root of 23615623 is about 286.9017093113.

The spelling of 23615623 in words is "twenty-three million, six hundred fifteen thousand, six hundred twenty-three".