862166 has 4 divisors (see below), whose sum is σ = 1293252. Its totient is φ = 431082.

The previous prime is 862159. The next prime is 862171. The reversal of 862166 is 661268.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215540 + ... + 215543.

It is an arithmetic number, because the mean of its divisors is an integer number (323313).

2⁸⁶²¹⁶⁶ is an apocalyptic number.

862166 is a deficient number, since it is larger than the sum of its proper divisors (431086).

862166 is a wasteful number, since it uses less digits than its factorization.

862166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431085.

The product of its digits is 3456, while the sum is 29.

The square root of 862166 is about 928.5289440831. The cubic root of 862166 is about 95.1766243245.

The spelling of 862166 in words is "eight hundred sixty-two thousand, one hundred sixty-six".