866832 has 20 divisors (see below), whose sum is σ = 2239440. Its totient is φ = 288928.

The previous prime is 866819. The next prime is 866843. The reversal of 866832 is 238668.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 866793 and 866802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8982 + ... + 9077.

It is an arithmetic number, because the mean of its divisors is an integer number (111972).

2⁸⁶⁶⁸³² is an apocalyptic number.

It is an amenable number.

866832 is an abundant number, since it is smaller than the sum of its proper divisors (1372608).

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

866832 is a wasteful number, since it uses less digits than its factorization.

866832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18070 (or 18064 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 866832 is about 931.0381302611. The cubic root of 866832 is about 95.3480125841.

The spelling of 866832 in words is "eight hundred sixty-six thousand, eight hundred thirty-two".