866846 has 8 divisors (see below), whose sum is σ = 1319880. Its totient is φ = 426888.

The previous prime is 866843. The next prime is 866849. The reversal of 866846 is 648668.

It is an interprime number because it is at equal distance from previous prime (866843) and next prime (866849).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3101 + ... + 3368.

It is an arithmetic number, because the mean of its divisors is an integer number (164985).

2⁸⁶⁶⁸⁴⁶ is an apocalyptic number.

866846 is a deficient number, since it is larger than the sum of its proper divisors (453034).

866846 is a wasteful number, since it uses less digits than its factorization.

866846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538.

The product of its digits is 55296, while the sum is 38.

The square root of 866846 is about 931.0456487198. The cubic root of 866846 is about 95.3485258958.

The spelling of 866846 in words is "eight hundred sixty-six thousand, eight hundred forty-six".