168206873 has 4 divisors (see below), whose sum is σ = 174007140. Its totient is φ = 162406608.

The previous prime is 168206851. The next prime is 168206933. The reversal of 168206873 is 378602861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61042969 + 107163904 = 7813^2 + 10352^2 .

It is a cyclic number.

It is not a de Polignac number, because 168206873 - 2⁶ = 168206809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168206873.

It is not an unprimeable number, because it can be changed into a prime (168206813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2900090 + ... + 2900147.

It is an arithmetic number, because the mean of its divisors is an integer number (43501785).

Almost surely, 2^168206873 is an apocalyptic number.

It is an amenable number.

168206873 is a deficient number, since it is larger than the sum of its proper divisors (5800267).

168206873 is an equidigital number, since it uses as much as digits as its factorization.

168206873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5800266.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 168206873 is about 12969.4592408473. The cubic root of 168206873 is about 552.0112292489.

The spelling of 168206873 in words is "one hundred sixty-eight million, two hundred six thousand, eight hundred seventy-three".