171340986 has 8 divisors (see below), whose sum is σ = 342681984. Its totient is φ = 57113660.

The previous prime is 171340979. The next prime is 171340987. The reversal of 171340986 is 689043171.

171340986 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

171340986 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (171340987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14278410 + ... + 14278421.

It is an arithmetic number, because the mean of its divisors is an integer number (42835248).

Almost surely, 2^171340986 is an apocalyptic number.

171340986 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.

171340986 is a wasteful number, since it uses less digits than its factorization.

171340986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28556836.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 171340986 is about 13089.7282630313. The cubic root of 171340986 is about 555.4186014916.

The spelling of 171340986 in words is "one hundred seventy-one million, three hundred forty thousand, nine hundred eighty-six".