171680946 has 8 divisors (see below), whose sum is σ = 343361904. Its totient is φ = 57226980.

The previous prime is 171680933. The next prime is 171680959. The reversal of 171680946 is 649086171.

171680946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (171680933) and next prime (171680959).

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

171680946 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 171680898 and 171680907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14306740 + ... + 14306751.

It is an arithmetic number, because the mean of its divisors is an integer number (42920238).

Almost surely, 2^171680946 is an apocalyptic number.

171680946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

171680946 is a wasteful number, since it uses less digits than its factorization.

171680946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28613496.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 171680946 is about 13102.7075827861. The cubic root of 171680946 is about 555.7856967003.

The spelling of 171680946 in words is "one hundred seventy-one million, six hundred eighty thousand, nine hundred forty-six".