23653938 has 32 divisors (see below), whose sum is σ = 58982400. Its totient is φ = 6143760.

The previous prime is 23653933. The next prime is 23653939. The reversal of 23653938 is 83935632.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23653896 and 23653905.

It is not an unprimeable number, because it can be changed into a prime (23653933) 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 15 ways as a sum of consecutive naturals, for example, 25138 + ... + 26061.

It is an arithmetic number, because the mean of its divisors is an integer number (1843200).

Almost surely, 2^23653938 is an apocalyptic number.

23653938 is an abundant number, since it is smaller than the sum of its proper divisors (35328462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23653938 is a wasteful number, since it uses less digits than its factorization.

23653938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51222.

The product of its digits is 116640, while the sum is 39.

The square root of 23653938 is about 4863.5314330227. The cubic root of 23653938 is about 287.0567860214.

The spelling of 23653938 in words is "twenty-three million, six hundred fifty-three thousand, nine hundred thirty-eight".