168607971 has 18 divisors (see below), whose sum is σ = 283308012. Its totient is φ = 96347160.

The previous prime is 168607951. The next prime is 168607981. The reversal of 168607971 is 179706861.

It is not a de Polignac number, because 168607971 - 2¹¹ = 168605923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168607931) 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 17 ways as a sum of consecutive naturals, for example, 190725 + ... + 191606.

It is an arithmetic number, because the mean of its divisors is an integer number (15739334).

Almost surely, 2^168607971 is an apocalyptic number.

168607971 is a deficient number, since it is larger than the sum of its proper divisors (114700041).

168607971 is a wasteful number, since it uses less digits than its factorization.

168607971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382351 (or 382341 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 168607971 is about 12984.9132072571. The cubic root of 168607971 is about 552.4496474112.

The spelling of 168607971 in words is "one hundred sixty-eight million, six hundred seven thousand, nine hundred seventy-one".