866214 has 20 divisors (see below), whose sum is σ = 1941324. Its totient is φ = 288684.

The previous prime is 866213. The next prime is 866221. The reversal of 866214 is 412668.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866213) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2512 + ... + 2835.

2⁸⁶⁶²¹⁴ is an apocalyptic number.

866214 is an abundant number, since it is smaller than the sum of its proper divisors (1075110).

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

866214 is a wasteful number, since it uses less digits than its factorization.

866214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361 (or 5352 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 866214 is about 930.7061834972. The cubic root of 866214 is about 95.3253480306.

The spelling of 866214 in words is "eight hundred sixty-six thousand, two hundred fourteen".