170086842 has 24 divisors (see below), whose sum is σ = 373189440. Its totient is φ = 55977480.

The previous prime is 170086831. The next prime is 170086867. The reversal of 170086842 is 248680071.

It is a junction number, because it is equal to n+sod(n) for n = 170086797 and 170086806.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 58384 + ... + 61227.

It is an arithmetic number, because the mean of its divisors is an integer number (15549560).

Almost surely, 2^170086842 is an apocalyptic number.

170086842 is an abundant number, since it is smaller than the sum of its proper divisors (203102598).

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

170086842 is a wasteful number, since it uses less digits than its factorization.

170086842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119698 (or 119695 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 170086842 is about 13041.7346238911. The cubic root of 170086842 is about 554.0601380497.

The spelling of 170086842 in words is "one hundred seventy million, eighty-six thousand, eight hundred forty-two".