23878 has 4 divisors (see below), whose sum is σ = 35820. Its totient is φ = 11938.

The previous prime is 23873. The next prime is 23879. The reversal of 23878 is 87832.

It is a happy number.

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

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23873) by changing a digit.

23878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968 + ... + 5971.

It is an arithmetic number, because the mean of its divisors is an integer number (8955).

2²³⁸⁷⁸ is an apocalyptic number.

23878 is a deficient number, since it is larger than the sum of its proper divisors (11942).

23878 is a wasteful number, since it uses less digits than its factorization.

23878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941.

The product of its digits is 2688, while the sum is 28.

The square root of 23878 is about 154.5250788707. The cubic root of 23878 is about 28.7960321180.

The spelling of 23878 in words is "twenty-three thousand, eight hundred seventy-eight".