8666532 has 108 divisors (see below), whose sum is σ = 27076140. Its totient is φ = 2330496.

The previous prime is 8666519. The next prime is 8666533. The reversal of 8666532 is 2356668.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 4769856 + 3896676 = 2184^2 + 1974^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8666533) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 509788 + ... + 509804.

It is an arithmetic number, because the mean of its divisors is an integer number (250705).

Almost surely, 2^8666532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8666532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13538070).

8666532 is an abundant number, since it is smaller than the sum of its proper divisors (18409608).

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

8666532 is a wasteful number, since it uses less digits than its factorization.

8666532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 29 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 8666532 is about 2943.8974166910. The cubic root of 8666532 is about 205.4069410113.

The spelling of 8666532 in words is "eight million, six hundred sixty-six thousand, five hundred thirty-two".