870166 has 16 divisors (see below), whose sum is σ = 1463760. Its totient is φ = 384480.

The previous prime is 870161. The next prime is 870169. The reversal of 870166 is 661078.

870166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870161) by changing a digit.

870166 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, 280 + ... + 1348.

It is an arithmetic number, because the mean of its divisors is an integer number (91485).

2⁸⁷⁰¹⁶⁶ is an apocalyptic number.

870166 is a deficient number, since it is larger than the sum of its proper divisors (593594).

870166 is a wasteful number, since it uses less digits than its factorization.

870166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 870166 is about 932.8268864050. The cubic root of 870166 is about 95.4700983659.

The spelling of 870166 in words is "eight hundred seventy thousand, one hundred sixty-six".