168738684 has 12 divisors (see below), whose sum is σ = 393723624. Its totient is φ = 56246224.

The previous prime is 168738683. The next prime is 168738709. The reversal of 168738684 is 486837861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168738683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7030767 + ... + 7030790.

It is an arithmetic number, because the mean of its divisors is an integer number (32810302).

Almost surely, 2^168738684 is an apocalyptic number.

It is an amenable number.

168738684 is an abundant number, since it is smaller than the sum of its proper divisors (224984940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168738684 is a wasteful number, since it uses less digits than its factorization.

168738684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14061564 (or 14061562 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 168738684 is about 12989.9454964215. The cubic root of 168738684 is about 552.5923723717.

The spelling of 168738684 in words is "one hundred sixty-eight million, seven hundred thirty-eight thousand, six hundred eighty-four".