866848 has 24 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 427584.

The previous prime is 866843. The next prime is 866849. The reversal of 866848 is 848668.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 866848.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3165 + ... + 3427.

It is an arithmetic number, because the mean of its divisors is an integer number (72072).

2⁸⁶⁶⁸⁴⁸ is an apocalyptic number.

It is an amenable number.

866848 is a deficient number, since it is larger than the sum of its proper divisors (862880).

866848 is a wasteful number, since it uses less digits than its factorization.

866848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 368 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 866848 is about 931.0467227803. The cubic root of 866848 is about 95.3485992256.

The spelling of 866848 in words is "eight hundred sixty-six thousand, eight hundred forty-eight".