168871973 has 8 divisors (see below), whose sum is σ = 177179136. Its totient is φ = 160743600.

The previous prime is 168871949. The next prime is 168872021. The reversal of 168871973 is 379178861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168871973 - 2⁶ = 168871909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168874973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42761 + ... + 46542.

It is an arithmetic number, because the mean of its divisors is an integer number (22147392).

Almost surely, 2^168871973 is an apocalyptic number.

It is an amenable number.

168871973 is a deficient number, since it is larger than the sum of its proper divisors (8307163).

168871973 is an equidigital number, since it uses as much as digits as its factorization.

168871973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89395.

The product of its digits is 508032, while the sum is 50.

The square root of 168871973 is about 12995.0749516884. The cubic root of 168871973 is about 552.7378341747.

The spelling of 168871973 in words is "one hundred sixty-eight million, eight hundred seventy-one thousand, nine hundred seventy-three".