23656538 has 8 divisors (see below), whose sum is σ = 35536320. Its totient is φ = 11811100.

The previous prime is 23656531. The next prime is 23656541. The reversal of 23656538 is 83565632.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23656531) 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 in 3 ways as a sum of consecutive naturals, for example, 6788 + ... + 9663.

It is an arithmetic number, because the mean of its divisors is an integer number (4442040).

Almost surely, 2^23656538 is an apocalyptic number.

23656538 is a deficient number, since it is larger than the sum of its proper divisors (11879782).

23656538 is a wasteful number, since it uses less digits than its factorization.

23656538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17172.

The product of its digits is 129600, while the sum is 38.

The square root of 23656538 is about 4863.7987211644. The cubic root of 23656538 is about 287.0673032314.

The spelling of 23656538 in words is "twenty-three million, six hundred fifty-six thousand, five hundred thirty-eight".