168836 has 6 divisors (see below), whose sum is σ = 295470. Its totient is φ = 84416.

The previous prime is 168803. The next prime is 168851. The reversal of 168836 is 638861.

It can be written as a sum of positive squares in only one way, i.e., 160000 + 8836 = 400^2 + 94^2 .

It is an unprimeable number.

168836 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101 + ... + 21108.

It is an arithmetic number, because the mean of its divisors is an integer number (49245).

2¹⁶⁸⁸³⁶ is an apocalyptic number.

It is an amenable number.

168836 is a deficient number, since it is larger than the sum of its proper divisors (126634).

168836 is a wasteful number, since it uses less digits than its factorization.

168836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42213 (or 42211 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 168836 is about 410.8965806623. The cubic root of 168836 is about 55.2698583434.

It can be divided in two parts, 16 and 8836, that multiplied together give a square (141376 = 376²).

The spelling of 168836 in words is "one hundred sixty-eight thousand, eight hundred thirty-six".