168429377 has 2 divisors, whose sum is σ = 168429378. Its totient is φ = 168429376.

The previous prime is 168429347. The next prime is 168429379. The reversal of 168429377 is 773924861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150822961 + 17606416 = 12281^2 + 4196^2 .

It is a cyclic number.

It is not a de Polignac number, because 168429377 - 2¹⁰ = 168428353 is a prime.

Together with 168429379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168429379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84214688 + 84214689.

It is an arithmetic number, because the mean of its divisors is an integer number (84214689).

Almost surely, 2^168429377 is an apocalyptic number.

It is an amenable number.

168429377 is a deficient number, since it is larger than the sum of its proper divisors (1).

168429377 is an equidigital number, since it uses as much as digits as its factorization.

168429377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 168429377 is about 12978.0344043310. The cubic root of 168429377 is about 552.2545220994.

The spelling of 168429377 in words is "one hundred sixty-eight million, four hundred twenty-nine thousand, three hundred seventy-seven".