171906980 has 48 divisors (see below), whose sum is σ = 413406336. Its totient is φ = 58821120.

The previous prime is 171906947. The next prime is 171907019. The reversal of 171906980 is 89609171.

It is a happy number.

171906980 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 95852 + ... + 97628.

It is an arithmetic number, because the mean of its divisors is an integer number (8612632).

Almost surely, 2^171906980 is an apocalyptic number.

171906980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171906980 is an abundant number, since it is smaller than the sum of its proper divisors (241499356).

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

171906980 is a wasteful number, since it uses less digits than its factorization.

171906980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 171906980 is about 13111.3302147418. The cubic root of 171906980 is about 556.0295043260.

The spelling of 171906980 in words is "one hundred seventy-one million, nine hundred six thousand, nine hundred eighty".