168299863 has 2 divisors, whose sum is σ = 168299864. Its totient is φ = 168299862.

The previous prime is 168299849. The next prime is 168299867. The reversal of 168299863 is 368992861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168299863 - 2²¹ = 166202711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168299863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168299867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84149931 + 84149932.

It is an arithmetic number, because the mean of its divisors is an integer number (84149932).

Almost surely, 2^168299863 is an apocalyptic number.

168299863 is a deficient number, since it is larger than the sum of its proper divisors (1).

168299863 is an equidigital number, since it uses as much as digits as its factorization.

168299863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 52.

The square root of 168299863 is about 12973.0437060853. The cubic root of 168299863 is about 552.1129335114.

The spelling of 168299863 in words is "one hundred sixty-eight million, two hundred ninety-nine thousand, eight hundred sixty-three".