538166 has 8 divisors (see below), whose sum is σ = 827064. Its totient is φ = 262480.

The previous prime is 538163. The next prime is 538199. The reversal of 538166 is 661835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538163) 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, 3200 + ... + 3363.

It is an arithmetic number, because the mean of its divisors is an integer number (103383).

2⁵³⁸¹⁶⁶ is an apocalyptic number.

538166 is a deficient number, since it is larger than the sum of its proper divisors (288898).

538166 is a wasteful number, since it uses less digits than its factorization.

538166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606.

The product of its digits is 4320, while the sum is 29.

The square root of 538166 is about 733.5979825490. The cubic root of 538166 is about 81.3402342677.

The spelling of 538166 in words is "five hundred thirty-eight thousand, one hundred sixty-six".