33869 has 4 divisors (see below), whose sum is σ = 36960. Its totient is φ = 30780.

The previous prime is 33863. The next prime is 33871. The reversal of 33869 is 96833.

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 an emirpimes, since its reverse is a distinct semiprime: 96833 = 11 ⋅8803.

It is a cyclic number.

It is not a de Polignac number, because 33869 - 2⁸ = 33613 is a prime.

It is a super-2 number, since 2×33869² = 2294218322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (9240).

2³³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

33869 is a deficient number, since it is larger than the sum of its proper divisors (3091).

33869 is a wasteful number, since it uses less digits than its factorization.

33869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090.

The product of its digits is 3888, while the sum is 29.

The square root of 33869 is about 184.0353226965. The cubic root of 33869 is about 32.3544576829.

The spelling of 33869 in words is "thirty-three thousand, eight hundred sixty-nine".