166933 has 4 divisors (see below), whose sum is σ = 179788. Its totient is φ = 154080.

The previous prime is 166931. The next prime is 166949. The reversal of 166933 is 339661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 339661 = 7 ⋅48523.

It can be written as a sum of positive squares in 2 ways, for example, as 49284 + 117649 = 222^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 166933 - 2¹ = 166931 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6408 + ... + 6433.

It is an arithmetic number, because the mean of its divisors is an integer number (44947).

2¹⁶⁶⁹³³ is an apocalyptic number.

166933 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

166933 is a deficient number, since it is larger than the sum of its proper divisors (12855).

166933 is a wasteful number, since it uses less digits than its factorization.

166933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12854.

The product of its digits is 2916, while the sum is 28.

The square root of 166933 is about 408.5743506389. The cubic root of 166933 is about 55.0614189906.

The spelling of 166933 in words is "one hundred sixty-six thousand, nine hundred thirty-three".