170939087 has 8 divisors (see below), whose sum is σ = 186700800. Its totient is φ = 155214360.

The previous prime is 170939077. The next prime is 170939099. The reversal of 170939087 is 780939071.

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

It is a cyclic number.

It is not a de Polignac number, because 170939087 - 2⁶ = 170939023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170939057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914 + ... + 18512.

It is an arithmetic number, because the mean of its divisors is an integer number (23337600).

Almost surely, 2^170939087 is an apocalyptic number.

170939087 is a deficient number, since it is larger than the sum of its proper divisors (15761713).

170939087 is a wasteful number, since it uses less digits than its factorization.

170939087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18493.

The product of its (nonzero) digits is 95256, while the sum is 44.

The square root of 170939087 is about 13074.3675564059. The cubic root of 170939087 is about 554.9839965085.

The spelling of 170939087 in words is "one hundred seventy million, nine hundred thirty-nine thousand, eighty-seven".