23872887 has 20 divisors (see below), whose sum is σ = 36895320. Its totient is φ = 15364944.

The previous prime is 23872867. The next prime is 23872897. The reversal of 23872887 is 78827832.

It is not a de Polignac number, because 23872887 - 2¹⁰ = 23871863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23872867) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2733 + ... + 7430.

It is an arithmetic number, because the mean of its divisors is an integer number (1844766).

Almost surely, 2^23872887 is an apocalyptic number.

23872887 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23872887 is a deficient number, since it is larger than the sum of its proper divisors (13022433).

23872887 is a wasteful number, since it uses less digits than its factorization.

23872887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204 (or 10195 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 23872887 is about 4885.9888456688. The cubic root of 23872887 is about 287.9397660490.

The spelling of 23872887 in words is "twenty-three million, eight hundred seventy-two thousand, eight hundred eighty-seven".