168097687 has 2 divisors, whose sum is σ = 168097688. Its totient is φ = 168097686.

The previous prime is 168097673. The next prime is 168097733. The reversal of 168097687 is 786790861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168097687 - 2¹¹ = 168095639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168097607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84048843 + 84048844.

It is an arithmetic number, because the mean of its divisors is an integer number (84048844).

Almost surely, 2^168097687 is an apocalyptic number.

168097687 is a deficient number, since it is larger than the sum of its proper divisors (1).

168097687 is an equidigital number, since it uses as much as digits as its factorization.

168097687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 168097687 is about 12965.2492070149. The cubic root of 168097687 is about 551.8917633736.

The spelling of 168097687 in words is "one hundred sixty-eight million, ninety-seven thousand, six hundred eighty-seven".