33646 has 4 divisors (see below), whose sum is σ = 50472. Its totient is φ = 16822.

The previous prime is 33641. The next prime is 33647. The reversal of 33646 is 64633.

33646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×33646² = 2264106632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8410 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (12618).

2³³⁶⁴⁶ is an apocalyptic number.

33646 is a deficient number, since it is larger than the sum of its proper divisors (16826).

33646 is a wasteful number, since it uses less digits than its factorization.

33646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16825.

The product of its digits is 1296, while the sum is 22.

The square root of 33646 is about 183.4284601691. The cubic root of 33646 is about 32.2832919432.

The spelling of 33646 in words is "thirty-three thousand, six hundred forty-six".