846666 has 16 divisors (see below), whose sum is σ = 1881600. Its totient is φ = 282204.

The previous prime is 846661. The next prime is 846667. The reversal of 846666 is 666648.

846666 is a modest number, since divided by 6666 gives 84 as remainder.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 846666.

It is not an unprimeable number, because it can be changed into a prime (846661) by changing a digit.

846666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 7786 + ... + 7893.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2⁸⁴⁶⁶⁶⁶ is an apocalyptic number.

846666 is an abundant number, since it is smaller than the sum of its proper divisors (1034934).

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

846666 is a wasteful number, since it uses less digits than its factorization.

846666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15690 (or 15684 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 846666 is about 920.1445538610. The cubic root of 846666 is about 94.6028107576.

The spelling of 846666 in words is "eight hundred forty-six thousand, six hundred sixty-six".