168673 has 2 divisors, whose sum is σ = 168674. Its totient is φ = 168672.

The previous prime is 168643. The next prime is 168677. The reversal of 168673 is 376861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166464 + 2209 = 408^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 168673 - 2¹³ = 160481 is a prime.

168673 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (168677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84336 + 84337.

It is an arithmetic number, because the mean of its divisors is an integer number (84337).

2¹⁶⁸⁶⁷³ is an apocalyptic number.

It is an amenable number.

168673 is a deficient number, since it is larger than the sum of its proper divisors (1).

168673 is an equidigital number, since it uses as much as digits as its factorization.

168673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 168673 is about 410.6981860199. The cubic root of 168673 is about 55.2520661512.

It can be divided in two parts, 168 and 673, that added together give a square (841 = 29²).

The spelling of 168673 in words is "one hundred sixty-eight thousand, six hundred seventy-three".