168869 has 2 divisors, whose sum is σ = 168870. Its totient is φ = 168868.

The previous prime is 168863. The next prime is 168887. The reversal of 168869 is 968861.

168869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112225 + 56644 = 335^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 168869 - 2¹⁶ = 103333 is a prime.

It is a super-2 number, since 2×168869² = 57033478322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84434 + 84435.

It is an arithmetic number, because the mean of its divisors is an integer number (84435).

2¹⁶⁸⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

168869 is a deficient number, since it is larger than the sum of its proper divisors (1).

168869 is an equidigital number, since it uses as much as digits as its factorization.

168869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 168869 is about 410.9367347902. The cubic root of 168869 is about 55.2734590496.

The spelling of 168869 in words is "one hundred sixty-eight thousand, eight hundred sixty-nine".