168704193 has 16 divisors (see below), whose sum is σ = 258715520. Its totient is φ = 95786496.

The previous prime is 168704177. The next prime is 168704203. The reversal of 168704193 is 391407861.

It is not a de Polignac number, because 168704193 - 2⁴ = 168704177 is a prime.

It is a super-2 number, since 2×168704193² = 56922209471562498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168704293) 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 15 ways as a sum of consecutive naturals, for example, 22288 + ... + 28881.

It is an arithmetic number, because the mean of its divisors is an integer number (16169720).

Almost surely, 2^168704193 is an apocalyptic number.

It is an amenable number.

168704193 is a deficient number, since it is larger than the sum of its proper divisors (90011327).

168704193 is a wasteful number, since it uses less digits than its factorization.

168704193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51336.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 168704193 is about 12988.6178248496. The cubic root of 168704193 is about 552.5547189583.

The spelling of 168704193 in words is "one hundred sixty-eight million, seven hundred four thousand, one hundred ninety-three".