23878133 has 4 divisors (see below), whose sum is σ = 23892108. Its totient is φ = 23864160.

The previous prime is 23878123. The next prime is 23878139. The reversal of 23878133 is 33187832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20857489 + 3020644 = 4567^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 23878133 - 2⁶ = 23878069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23878093 and 23878102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23878139) 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, 3998 + ... + 7983.

It is an arithmetic number, because the mean of its divisors is an integer number (5973027).

Almost surely, 2^23878133 is an apocalyptic number.

It is an amenable number.

23878133 is a deficient number, since it is larger than the sum of its proper divisors (13975).

23878133 is a wasteful number, since it uses less digits than its factorization.

23878133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13974.

The product of its digits is 24192, while the sum is 35.

The square root of 23878133 is about 4886.5256573562. The cubic root of 23878133 is about 287.9608558231.

The spelling of 23878133 in words is "twenty-three million, eight hundred seventy-eight thousand, one hundred thirty-three".