168775379 has 2 divisors, whose sum is σ = 168775380. Its totient is φ = 168775378.

The previous prime is 168775361. The next prime is 168775391. The reversal of 168775379 is 973577861.

It is a strong prime.

It is an emirp because it is prime and its reverse (973577861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168775379 - 2¹² = 168771283 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168775379.

It is not a weakly prime, because it can be changed into another prime (168775319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84387689 + 84387690.

It is an arithmetic number, because the mean of its divisors is an integer number (84387690).

Almost surely, 2^168775379 is an apocalyptic number.

168775379 is a deficient number, since it is larger than the sum of its proper divisors (1).

168775379 is an equidigital number, since it uses as much as digits as its factorization.

168775379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 53.

The square root of 168775379 is about 12991.3578582071. The cubic root of 168775379 is about 552.6324262327.

The spelling of 168775379 in words is "one hundred sixty-eight million, seven hundred seventy-five thousand, three hundred seventy-nine".