23923538 has 8 divisors (see below), whose sum is σ = 36214860. Its totient is φ = 11851920.

The previous prime is 23923531. The next prime is 23923553. The reversal of 23923538 is 83532932.

It can be written as a sum of positive squares in 2 ways, for example, as 20187049 + 3736489 = 4493^2 + 1933^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 23923498 and 23923507.

It is not an unprimeable number, because it can be changed into a prime (23923531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54653 + ... + 55088.

Almost surely, 2^23923538 is an apocalyptic number.

23923538 is a deficient number, since it is larger than the sum of its proper divisors (12291322).

23923538 is a wasteful number, since it uses less digits than its factorization.

23923538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109852.

The product of its digits is 38880, while the sum is 35.

The square root of 23923538 is about 4891.1693898290. The cubic root of 23923538 is about 288.1432623788.

The spelling of 23923538 in words is "twenty-three million, nine hundred twenty-three thousand, five hundred thirty-eight".