170117086 has 4 divisors (see below), whose sum is σ = 255175632. Its totient is φ = 85058542.

The previous prime is 170117081. The next prime is 170117117. The reversal of 170117086 is 680711071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 680711071 = 89 ⋅7648439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170117081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42529270 + ... + 42529273.

It is an arithmetic number, because the mean of its divisors is an integer number (63793908).

Almost surely, 2^170117086 is an apocalyptic number.

170117086 is a deficient number, since it is larger than the sum of its proper divisors (85058546).

170117086 is an equidigital number, since it uses as much as digits as its factorization.

170117086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85058545.

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 170117086 is about 13042.8940806862. The cubic root of 170117086 is about 554.0929761802.

The spelling of 170117086 in words is "one hundred seventy million, one hundred seventeen thousand, eighty-six".