866152 has 16 divisors (see below), whose sum is σ = 1856160. Its totient is φ = 371184.

The previous prime is 866123. The next prime is 866161. The reversal of 866152 is 251668.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 866152.

It is a congruent number.

It is an unprimeable number.

866152 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 3 ways as a sum of consecutive naturals, for example, 7678 + ... + 7789.

It is an arithmetic number, because the mean of its divisors is an integer number (116010).

2⁸⁶⁶¹⁵² is an apocalyptic number.

It is an amenable number.

866152 is an abundant number, since it is smaller than the sum of its proper divisors (990008).

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

866152 is a wasteful number, since it uses less digits than its factorization.

866152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15480 (or 15476 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 866152 is about 930.6728748599. The cubic root of 866152 is about 95.3230736455.

The spelling of 866152 in words is "eight hundred sixty-six thousand, one hundred fifty-two".