171968860 has 48 divisors (see below), whose sum is σ = 413973504. Its totient is φ = 58782528.

The previous prime is 171968857. The next prime is 171968879. The reversal of 171968860 is 68869171.

It is a self number, because there is not a number n which added to its sum of digits gives 171968860.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49707 + ... + 53053.

It is an arithmetic number, because the mean of its divisors is an integer number (8624448).

Almost surely, 2^171968860 is an apocalyptic number.

171968860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171968860 is an abundant number, since it is smaller than the sum of its proper divisors (242004644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171968860 is a wasteful number, since it uses less digits than its factorization.

171968860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3728 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 171968860 is about 13113.6897934944. The cubic root of 171968860 is about 556.0962128411.

The spelling of 171968860 in words is "one hundred seventy-one million, nine hundred sixty-eight thousand, eight hundred sixty".