166973 has 2 divisors, whose sum is σ = 166974. Its totient is φ = 166972.

The previous prime is 166967. The next prime is 166979. The reversal of 166973 is 379661.

166973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (166967) and next prime (166979).

It can be written as a sum of positive squares in only one way, i.e., 128164 + 38809 = 358^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 166973 - 2⁶ = 166909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83486 + 83487.

It is an arithmetic number, because the mean of its divisors is an integer number (83487).

2¹⁶⁶⁹⁷³ is an apocalyptic number.

It is an amenable number.

166973 is a deficient number, since it is larger than the sum of its proper divisors (1).

166973 is an equidigital number, since it uses as much as digits as its factorization.

166973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 166973 is about 408.6232984058. The cubic root of 166973 is about 55.0658165251.

The spelling of 166973 in words is "one hundred sixty-six thousand, nine hundred seventy-three".