168682869 has 6 divisors (see below), whose sum is σ = 243653046. Its totient is φ = 112455240.

The previous prime is 168682867. The next prime is 168682883. The reversal of 168682869 is 968286861.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 162256644 + 6426225 = 12738^2 + 2535^2 .

It is not a de Polignac number, because 168682869 - 2¹ = 168682867 is a prime.

It is a super-2 number, since 2×168682869² = 56907820588142322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168682867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9371262 + ... + 9371279.

It is an arithmetic number, because the mean of its divisors is an integer number (40608841).

Almost surely, 2^168682869 is an apocalyptic number.

It is an amenable number.

168682869 is a deficient number, since it is larger than the sum of its proper divisors (74970177).

168682869 is a wasteful number, since it uses less digits than its factorization.

168682869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18742547 (or 18742544 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 168682869 is about 12987.7969263459. The cubic root of 168682869 is about 552.5314372344.

The spelling of 168682869 in words is "one hundred sixty-eight million, six hundred eighty-two thousand, eight hundred sixty-nine".