168968 has 8 divisors (see below), whose sum is σ = 316830. Its totient is φ = 84480.

The previous prime is 168943. The next prime is 168977. The reversal of 168968 is 869861.

It can be written as a sum of positive squares in only one way, i.e., 128164 + 40804 = 358^2 + 202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10553 + ... + 10568.

2¹⁶⁸⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

168968 is a deficient number, since it is larger than the sum of its proper divisors (147862).

168968 is a wasteful number, since it uses less digits than its factorization.

168968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21127 (or 21123 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 168968 is about 411.0571736389. The cubic root of 168968 is about 55.2842583545.

The spelling of 168968 in words is "one hundred sixty-eight thousand, nine hundred sixty-eight".