33671 has 4 divisors (see below), whose sum is σ = 36744. Its totient is φ = 30600.

The previous prime is 33647. The next prime is 33679. The reversal of 33671 is 17633.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33671 - 2¹⁰ = 32647 is a prime.

It is a super-2 number, since 2×33671² = 2267472482, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 33671 parts by 259 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (9186).

2³³⁶⁷¹ is an apocalyptic number.

33671 is a deficient number, since it is larger than the sum of its proper divisors (3073).

33671 is a wasteful number, since it uses less digits than its factorization.

33671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072.

The product of its digits is 378, while the sum is 20.

The square root of 33671 is about 183.4965939738. The cubic root of 33671 is about 32.2912857858.

The spelling of 33671 in words is "thirty-three thousand, six hundred seventy-one".