168964589 has 2 divisors, whose sum is σ = 168964590. Its totient is φ = 168964588.

The previous prime is 168964541. The next prime is 168964637. The reversal of 168964589 is 985469861.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (168964541) and next prime (168964637).

It can be written as a sum of positive squares in only one way, i.e., 165971689 + 2992900 = 12883^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 168964589 - 2¹⁶ = 168899053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168964519) 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, 84482294 + 84482295.

It is an arithmetic number, because the mean of its divisors is an integer number (84482295).

Almost surely, 2^168964589 is an apocalyptic number.

It is an amenable number.

168964589 is a deficient number, since it is larger than the sum of its proper divisors (1).

168964589 is an equidigital number, since it uses as much as digits as its factorization.

168964589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 56.

The square root of 168964589 is about 12998.6379671102. The cubic root of 168964589 is about 552.8388633954.

The spelling of 168964589 in words is "one hundred sixty-eight million, nine hundred sixty-four thousand, five hundred eighty-nine".