23904887 has 4 divisors (see below), whose sum is σ = 23921256. Its totient is φ = 23888520.

The previous prime is 23904871. The next prime is 23904893. The reversal of 23904887 is 78840932.

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

It is a cyclic number.

It is not a de Polignac number, because 23904887 - 2⁴ = 23904871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23904817) 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, 5753 + ... + 8994.

It is an arithmetic number, because the mean of its divisors is an integer number (5980314).

Almost surely, 2^23904887 is an apocalyptic number.

23904887 is a deficient number, since it is larger than the sum of its proper divisors (16369).

23904887 is a wasteful number, since it uses less digits than its factorization.

23904887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16368.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 23904887 is about 4889.2624188112. The cubic root of 23904887 is about 288.0683632401.

The spelling of 23904887 in words is "twenty-three million, nine hundred four thousand, eight hundred eighty-seven".