188047 has 4 divisors (see below), whose sum is σ = 192096. Its totient is φ = 184000.

The previous prime is 188029. The next prime is 188107. The reversal of 188047 is 740881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740881 = 179 ⋅4139.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188047 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 (188017) 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, 1954 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (48024).

2¹⁸⁸⁰⁴⁷ is an apocalyptic number.

188047 is a deficient number, since it is larger than the sum of its proper divisors (4049).

188047 is an equidigital number, since it uses as much as digits as its factorization.

188047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 188047 is about 433.6438630951. The cubic root of 188047 is about 57.2913166407.

The spelling of 188047 in words is "one hundred eighty-eight thousand, forty-seven".