168867873 has 6 divisors (see below), whose sum is σ = 243920274. Its totient is φ = 112578576.

The previous prime is 168867871. The next prime is 168867883. The reversal of 168867873 is 378768861.

It can be written as a sum of positive squares in only one way, i.e., 148644864 + 20223009 = 12192^2 + 4497^2 .

It is not a de Polignac number, because 168867873 - 2¹ = 168867871 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168867871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9381540 + ... + 9381557.

It is an arithmetic number, because the mean of its divisors is an integer number (40653379).

Almost surely, 2^168867873 is an apocalyptic number.

It is an amenable number.

168867873 is a deficient number, since it is larger than the sum of its proper divisors (75052401).

168867873 is a wasteful number, since it uses less digits than its factorization.

168867873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18763103 (or 18763100 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 168867873 is about 12994.9171986589. The cubic root of 168867873 is about 552.7333608778.

The spelling of 168867873 in words is "one hundred sixty-eight million, eight hundred sixty-seven thousand, eight hundred seventy-three".