168486893 has 2 divisors, whose sum is σ = 168486894. Its totient is φ = 168486892.

The previous prime is 168486853. The next prime is 168486907. The reversal of 168486893 is 398684861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101868649 + 66618244 = 10093^2 + 8162^2 .

It is a cyclic number.

It is not a de Polignac number, because 168486893 - 2¹⁰ = 168485869 is a prime.

It is a super-2 number, since 2×168486893² = 56775666225586898, 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 (168486803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84243446 + 84243447.

It is an arithmetic number, because the mean of its divisors is an integer number (84243447).

Almost surely, 2^168486893 is an apocalyptic number.

It is an amenable number.

168486893 is a deficient number, since it is larger than the sum of its proper divisors (1).

168486893 is an equidigital number, since it uses as much as digits as its factorization.

168486893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 53.

The square root of 168486893 is about 12980.2501131527. The cubic root of 168486893 is about 552.3173770415.

The spelling of 168486893 in words is "one hundred sixty-eight million, four hundred eighty-six thousand, eight hundred ninety-three".