168992 has 12 divisors (see below), whose sum is σ = 332766. Its totient is φ = 84480.

The previous prime is 168991. The next prime is 169003. The reversal of 168992 is 299861.

It can be written as a sum of positive squares in only one way, i.e., 163216 + 5776 = 404^2 + 76^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 168992.

It is not an unprimeable number, because it can be changed into a prime (168991) by changing a digit.

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, 2609 + ... + 2672.

2¹⁶⁸⁹⁹² is an apocalyptic number.

It is an amenable number.

168992 is a deficient number, since it is larger than the sum of its proper divisors (163774).

168992 is an equidigital number, since it uses as much as digits as its factorization.

168992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5291 (or 5283 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 168992 is about 411.0863656216. The cubic root of 168992 is about 55.2868757325.

The spelling of 168992 in words is "one hundred sixty-eight thousand, nine hundred ninety-two".