171020682 has 72 divisors (see below), whose sum is σ = 437272992. Its totient is φ = 48157200.

The previous prime is 171020557. The next prime is 171020687. The reversal of 171020682 is 286020171.

It is not an unprimeable number, because it can be changed into a prime (171020687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61257 + ... + 63987.

It is an arithmetic number, because the mean of its divisors is an integer number (6073236).

Almost surely, 2^171020682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171020682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218636496).

171020682 is an abundant number, since it is smaller than the sum of its proper divisors (266252310).

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

171020682 is a wasteful number, since it uses less digits than its factorization.

171020682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 171020682 is about 13077.4876027469. The cubic root of 171020682 is about 555.0722866644.

The spelling of 171020682 in words is "one hundred seventy-one million, twenty thousand, six hundred eighty-two".