32866 has 4 divisors (see below), whose sum is σ = 49302. Its totient is φ = 16432.

The previous prime is 32843. The next prime is 32869. The reversal of 32866 is 66823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66823 = 19 ⋅3517.

It can be written as a sum of positive squares in only one way, i.e., 18225 + 14641 = 135^2 + 121^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32866.

It is not an unprimeable number, because it can be changed into a prime (32869) by changing a digit.

32866 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 as a sum of consecutive naturals, namely, 8215 + ... + 8218.

2³²⁸⁶⁶ is an apocalyptic number.

32866 is a deficient number, since it is larger than the sum of its proper divisors (16436).

32866 is a wasteful number, since it uses less digits than its factorization.

32866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16435.

The product of its digits is 1728, while the sum is 25.

The square root of 32866 is about 181.2898232113. The cubic root of 32866 is about 32.0318692920.

It can be divided in two parts, 32 and 866, that added together give a palindrome (898).

The spelling of 32866 in words is "thirty-two thousand, eight hundred sixty-six".