168963849 has 6 divisors (see below), whose sum is σ = 244058906. Its totient is φ = 112642560.

The previous prime is 168963797. The next prime is 168963859. The reversal of 168963849 is 948369861.

It can be written as a sum of positive squares in only one way, i.e., 109056249 + 59907600 = 10443^2 + 7740^2 .

It is not a de Polignac number, because 168963849 - 2¹⁹ = 168439561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168963795 and 168963804.

It is not an unprimeable number, because it can be changed into a prime (168963859) 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 5 ways as a sum of consecutive naturals, for example, 9386872 + ... + 9386889.

Almost surely, 2^168963849 is an apocalyptic number.

It is an amenable number.

168963849 is a deficient number, since it is larger than the sum of its proper divisors (75095057).

168963849 is a wasteful number, since it uses less digits than its factorization.

168963849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18773767 (or 18773764 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 168963849 is about 12998.6095025583. The cubic root of 168963849 is about 552.8380563203.

The spelling of 168963849 in words is "one hundred sixty-eight million, nine hundred sixty-three thousand, eight hundred forty-nine".