32881 has 4 divisors (see below), whose sum is σ = 33264. Its totient is φ = 32500.

The previous prime is 32869. The next prime is 32887. The reversal of 32881 is 18823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18823 = 7 ⋅2689.

It is a cyclic number.

It is not a de Polignac number, because 32881 - 2⁹ = 32369 is a prime.

It is a super-2 number, since 2×32881² = 2162320322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6 + ... + 256.

It is an arithmetic number, because the mean of its divisors is an integer number (8316).

2³²⁸⁸¹ is an apocalyptic number.

It is an amenable number.

32881 is a deficient number, since it is larger than the sum of its proper divisors (383).

32881 is a wasteful number, since it uses less digits than its factorization.

32881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its digits is 384, while the sum is 22.

The square root of 32881 is about 181.3311887128. The cubic root of 32881 is about 32.0367416521.

The spelling of 32881 in words is "thirty-two thousand, eight hundred eighty-one".