168488871 has 4 divisors (see below), whose sum is σ = 224651832. Its totient is φ = 112325912.

The previous prime is 168488867. The next prime is 168488897. The reversal of 168488871 is 178884861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178884861 = 3 ⋅59628287.

It is a cyclic number.

It is not a de Polignac number, because 168488871 - 2² = 168488867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168488171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28081476 + ... + 28081481.

It is an arithmetic number, because the mean of its divisors is an integer number (56162958).

Almost surely, 2^168488871 is an apocalyptic number.

168488871 is a deficient number, since it is larger than the sum of its proper divisors (56162961).

168488871 is an equidigital number, since it uses as much as digits as its factorization.

168488871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56162960.

The product of its digits is 688128, while the sum is 51.

The square root of 168488871 is about 12980.3263056057. The cubic root of 168488871 is about 552.3195383956.

The spelling of 168488871 in words is "one hundred sixty-eight million, four hundred eighty-eight thousand, eight hundred seventy-one".