866046 has 8 divisors (see below), whose sum is σ = 1732104. Its totient is φ = 288680.

The previous prime is 866029. The next prime is 866051. The reversal of 866046 is 640668.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

866046 is an admirable number.

It is a congruent number.

It is an unprimeable number.

866046 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 3 ways as a sum of consecutive naturals, for example, 72165 + ... + 72176.

It is an arithmetic number, because the mean of its divisors is an integer number (216513).

2⁸⁶⁶⁰⁴⁶ is an apocalyptic number.

866046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

866046 is a wasteful number, since it uses less digits than its factorization.

866046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144346.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 866046 is about 930.6159250733. The cubic root of 866046 is about 95.3191849293.

The spelling of 866046 in words is "eight hundred sixty-six thousand, forty-six".