188671 has 4 divisors (see below), whose sum is σ = 215632. Its totient is φ = 161712.

The previous prime is 188653. The next prime is 188677. The reversal of 188671 is 176881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176881 = 79 ⋅2239.

It is a cyclic number.

It is not a de Polignac number, because 188671 - 2⁹ = 188159 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 (188677) 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, 13470 + ... + 13483.

It is an arithmetic number, because the mean of its divisors is an integer number (53908).

2¹⁸⁸⁶⁷¹ is an apocalyptic number.

188671 is a deficient number, since it is larger than the sum of its proper divisors (26961).

188671 is an equidigital number, since it uses as much as digits as its factorization.

188671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26960.

The product of its digits is 2688, while the sum is 31.

The square root of 188671 is about 434.3627516259. The cubic root of 188671 is about 57.3546169703.

The spelling of 188671 in words is "one hundred eighty-eight thousand, six hundred seventy-one".