168650089 has 2 divisors, whose sum is σ = 168650090. Its totient is φ = 168650088.

The previous prime is 168650087. The next prime is 168650093. The reversal of 168650089 is 980056861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151905625 + 16744464 = 12325^2 + 4092^2 .

It is a cyclic number.

It is not a de Polignac number, because 168650089 - 2¹ = 168650087 is a prime.

Together with 168650087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (168650087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84325044 + 84325045.

It is an arithmetic number, because the mean of its divisors is an integer number (84325045).

Almost surely, 2^168650089 is an apocalyptic number.

It is an amenable number.

168650089 is a deficient number, since it is larger than the sum of its proper divisors (1).

168650089 is an equidigital number, since it uses as much as digits as its factorization.

168650089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 168650089 is about 12986.5349112071. The cubic root of 168650089 is about 552.4956439260.

The spelling of 168650089 in words is "one hundred sixty-eight million, six hundred fifty thousand, eighty-nine".