11866671 has 12 divisors (see below), whose sum is σ = 17559360. Its totient is φ = 7717920.

The previous prime is 11866649. The next prime is 11866691. The reversal of 11866671 is 17666811.

11866671 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 11866671 - 2¹³ = 11858479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11866691) 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, 15711 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (1463280).

Almost surely, 2^11866671 is an apocalyptic number.

11866671 is a deficient number, since it is larger than the sum of its proper divisors (5692689).

11866671 is a wasteful number, since it uses less digits than its factorization.

11866671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32206 (or 32203 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 11866671 is about 3444.8034777038. The cubic root of 11866671 is about 228.0917797626.

The spelling of 11866671 in words is "eleven million, eight hundred sixty-six thousand, six hundred seventy-one".