168707849 has 2 divisors, whose sum is σ = 168707850. Its totient is φ = 168707848.

The previous prime is 168707839. The next prime is 168707867. The reversal of 168707849 is 948707861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137827600 + 30880249 = 11740^2 + 5557^2 .

It is a cyclic number.

It is not a de Polignac number, because 168707849 - 2¹² = 168703753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168707797 and 168707806.

It is not a weakly prime, because it can be changed into another prime (168707839) 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 as a sum of consecutive naturals, namely, 84353924 + 84353925.

It is an arithmetic number, because the mean of its divisors is an integer number (84353925).

Almost surely, 2^168707849 is an apocalyptic number.

It is an amenable number.

168707849 is a deficient number, since it is larger than the sum of its proper divisors (1).

168707849 is an equidigital number, since it uses as much as digits as its factorization.

168707849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 168707849 is about 12988.7585626957. The cubic root of 168707849 is about 552.5587104130.

The spelling of 168707849 in words is "one hundred sixty-eight million, seven hundred seven thousand, eight hundred forty-nine".