23887878 has 32 divisors (see below), whose sum is σ = 54749184. Its totient is φ = 6806592.

The previous prime is 23887849. The next prime is 23887933. The reversal of 23887878 is 87878832.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23887878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25026 + ... + 25962.

It is an arithmetic number, because the mean of its divisors is an integer number (1710912).

Almost surely, 2^23887878 is an apocalyptic number.

23887878 is an abundant number, since it is smaller than the sum of its proper divisors (30861306).

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

23887878 is a wasteful number, since it uses less digits than its factorization.

23887878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556.

The product of its digits is 1204224, while the sum is 51.

The square root of 23887878 is about 4887.5226853693. The cubic root of 23887878 is about 288.0000241127. Note that the first 4 decimals are identical.

The spelling of 23887878 in words is "twenty-three million, eight hundred eighty-seven thousand, eight hundred seventy-eight".