23187938 has 8 divisors (see below), whose sum is σ = 35904000. Its totient is φ = 11219940.

The previous prime is 23187929. The next prime is 23188021. The reversal of 23187938 is 83978132.

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

It is a super-3 number, since 3×23187938³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23187895 and 23187904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186938 + ... + 187061.

It is an arithmetic number, because the mean of its divisors is an integer number (4488000).

Almost surely, 2^23187938 is an apocalyptic number.

23187938 is a deficient number, since it is larger than the sum of its proper divisors (12716062).

23187938 is a wasteful number, since it uses less digits than its factorization.

23187938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374032.

The product of its digits is 72576, while the sum is 41.

The square root of 23187938 is about 4815.3855505037. The cubic root of 23187938 is about 285.1591928931.

The spelling of 23187938 in words is "twenty-three million, one hundred eighty-seven thousand, nine hundred thirty-eight".