11864187 has 12 divisors (see below), whose sum is σ = 17202640. Its totient is φ = 7879248.

The previous prime is 11864183. The next prime is 11864197. The reversal of 11864187 is 78146811.

11864187 is a `hidden beast` number, since 1 + 1 + 8 + 641 + 8 + 7 = 666.

11864187 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11864187 - 2² = 11864183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11864183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114 + ... + 4872.

Almost surely, 2^11864187 is an apocalyptic number.

11864187 is a deficient number, since it is larger than the sum of its proper divisors (5338453).

11864187 is a wasteful number, since it uses less digits than its factorization.

11864187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042 (or 5039 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 11864187 is about 3444.4429157703. The cubic root of 11864187 is about 228.0758634898.

The spelling of 11864187 in words is "eleven million, eight hundred sixty-four thousand, one hundred eighty-seven".