168986934 has 36 divisors (see below), whose sum is σ = 382771116. Its totient is φ = 53876856.

The previous prime is 168986933. The next prime is 168986959. The reversal of 168986934 is 439689861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168986933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 649 + ... + 18395.

It is an arithmetic number, because the mean of its divisors is an integer number (10632531).

Almost surely, 2^168986934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168986934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191385558).

168986934 is an abundant number, since it is smaller than the sum of its proper divisors (213784182).

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

168986934 is a wasteful number, since it uses less digits than its factorization.

168986934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17801 (or 17775 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 168986934 is about 12999.4974518248. The cubic root of 168986934 is about 552.8632326828.

It can be divided in two parts, 16898 and 6934, that added together give a palindrome (23832).

The spelling of 168986934 in words is "one hundred sixty-eight million, nine hundred eighty-six thousand, nine hundred thirty-four".