170470985 has 12 divisors (see below), whose sum is σ = 217308108. Its totient is φ = 128353536.

The previous prime is 170470973. The next prime is 170470991. The reversal of 170470985 is 589074071.

It can be written as a sum of positive squares in 6 ways, for example, as 48832144 + 121638841 = 6988^2 + 11029^2 .

It is not a de Polignac number, because 170470985 - 2⁴ = 170470969 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57542 + ... + 60431.

It is an arithmetic number, because the mean of its divisors is an integer number (18109009).

Almost surely, 2^170470985 is an apocalyptic number.

It is an amenable number.

170470985 is a deficient number, since it is larger than the sum of its proper divisors (46837123).

170470985 is a wasteful number, since it uses less digits than its factorization.

170470985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118012 (or 117995 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 170470985 is about 13056.4537681562. The cubic root of 170470985 is about 554.4769413903.

The spelling of 170470985 in words is "one hundred seventy million, four hundred seventy thousand, nine hundred eighty-five".