866532 has 12 divisors (see below), whose sum is σ = 2021936. Its totient is φ = 288840.

The previous prime is 866519. The next prime is 866573. The reversal of 866532 is 235668.

866532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 8⁶ + 6⁶ + 5⁶ + 6⁷ + 3³ + 2¹⁸ .

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 866532.

It is an unprimeable number.

866532 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, 36094 + ... + 36117.

2⁸⁶⁶⁵³² is an apocalyptic number.

It is an amenable number.

866532 is an abundant number, since it is smaller than the sum of its proper divisors (1155404).

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

866532 is a wasteful number, since it uses less digits than its factorization.

866532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72218 (or 72216 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 866532 is about 930.8770058391. The cubic root of 866532 is about 95.3370117196.

The spelling of 866532 in words is "eight hundred sixty-six thousand, five hundred thirty-two".