170992 has 10 divisors (see below), whose sum is σ = 331328. Its totient is φ = 85488.

The previous prime is 170971. The next prime is 171007. The reversal of 170992 is 299071.

It is a self number, because there is not a number n which added to its sum of digits gives 170992.

It is a congruent number.

It is an unprimeable number.

170992 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328 + ... + 5359.

2¹⁷⁰⁹⁹² is an apocalyptic number.

It is an amenable number.

170992 is a deficient number, since it is larger than the sum of its proper divisors (160336).

170992 is a wasteful number, since it uses less digits than its factorization.

170992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695 (or 10689 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 170992 is about 413.5117894329. The cubic root of 170992 is about 55.5041254407.

The spelling of 170992 in words is "one hundred seventy thousand, nine hundred ninety-two".