33828271 has 4 divisors (see below), whose sum is σ = 33856000. Its totient is φ = 33800544.

The previous prime is 33828251. The next prime is 33828287. The reversal of 33828271 is 17282833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17282833 = 241 ⋅71713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33828271 is a prime.

It is a super-2 number, since 2×33828271² = 2288703837698882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33828241) 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, 11946 + ... + 14503.

It is an arithmetic number, because the mean of its divisors is an integer number (8464000).

Almost surely, 2^33828271 is an apocalyptic number.

33828271 is a deficient number, since it is larger than the sum of its proper divisors (27729).

33828271 is a wasteful number, since it uses less digits than its factorization.

33828271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27728.

The product of its digits is 16128, while the sum is 34.

The square root of 33828271 is about 5816.2076132133. The cubic root of 33828271 is about 323.4148324923.

The spelling of 33828271 in words is "thirty-three million, eight hundred twenty-eight thousand, two hundred seventy-one".