168970 has 16 divisors (see below), whose sum is σ = 310248. Its totient is φ = 66240.

The previous prime is 168943. The next prime is 168977. The reversal of 168970 is 79861.

It can be written as a sum of positive squares in 4 ways, for example, as 58081 + 110889 = 241^2 + 333^2 .

It is an Ulam number.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (168977) by changing a digit.

168970 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 in 7 ways as a sum of consecutive naturals, for example, 472 + ... + 748.

2¹⁶⁸⁹⁷⁰ is an apocalyptic number.

168970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168970 is a deficient number, since it is larger than the sum of its proper divisors (141278).

168970 is a wasteful number, since it uses less digits than its factorization.

168970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 168970 is about 411.0596063833. The cubic root of 168970 is about 55.2844764788.

The spelling of 168970 in words is "one hundred sixty-eight thousand, nine hundred seventy".