866450 has 48 divisors (see below), whose sum is σ = 1833216. Its totient is φ = 302400.

The previous prime is 866443. The next prime is 866461. The reversal of 866450 is 54668.

It is a Curzon number.

It is an unprimeable number.

866450 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 23 ways as a sum of consecutive naturals, for example, 20129 + ... + 20171.

It is an arithmetic number, because the mean of its divisors is an integer number (38192).

2⁸⁶⁶⁴⁵⁰ is an apocalyptic number.

866450 is an abundant number, since it is smaller than the sum of its proper divisors (966766).

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

866450 is a wasteful number, since it uses less digits than its factorization.

866450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 866450 is about 930.8329603103. The cubic root of 866450 is about 95.3340043747.

The spelling of 866450 in words is "eight hundred sixty-six thousand, four hundred fifty".