866948 has 12 divisors (see below), whose sum is σ = 1538460. Its totient is φ = 427392.

The previous prime is 866941. The next prime is 866953. The reversal of 866948 is 849668.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 692224 = 418^2 + 832^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 866948.

It is not an unprimeable number, because it can be changed into a prime (866941) by changing a digit.

866948 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, 1193 + ... + 1776.

It is an arithmetic number, because the mean of its divisors is an integer number (128205).

2⁸⁶⁶⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

866948 is a deficient number, since it is larger than the sum of its proper divisors (671512).

866948 is a wasteful number, since it uses less digits than its factorization.

866948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046 (or 3044 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 866948 is about 931.1004242293. The cubic root of 866948 is about 95.3522655713.

The spelling of 866948 in words is "eight hundred sixty-six thousand, nine hundred forty-eight".