23087871 has 6 divisors (see below), whose sum is σ = 33349160. Its totient is φ = 15391908.

The previous prime is 23087863. The next prime is 23087891. The reversal of 23087871 is 17878032.

It is not a de Polignac number, because 23087871 - 2³ = 23087863 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 (23087891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1282651 + ... + 1282668.

Almost surely, 2^23087871 is an apocalyptic number.

23087871 is a deficient number, since it is larger than the sum of its proper divisors (10261289).

23087871 is a wasteful number, since it uses less digits than its factorization.

23087871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565325 (or 2565322 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 23087871 is about 4804.9839749993. The cubic root of 23087871 is about 284.7484021470.

The spelling of 23087871 in words is "twenty-three million, eighty-seven thousand, eight hundred seventy-one".