33042871 has 4 divisors (see below), whose sum is σ = 33245752. Its totient is φ = 32839992.

The previous prime is 33042853. The next prime is 33042899. The reversal of 33042871 is 17824033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17824033 = 19 ⋅938107.

It is a cyclic number.

It is not a de Polignac number, because 33042871 - 2¹³ = 33034679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33042851) 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, 101196 + ... + 101521.

It is an arithmetic number, because the mean of its divisors is an integer number (8311438).

Almost surely, 2^33042871 is an apocalyptic number.

33042871 is a deficient number, since it is larger than the sum of its proper divisors (202881).

33042871 is a wasteful number, since it uses less digits than its factorization.

33042871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202880.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 33042871 is about 5748.2928770201. The cubic root of 33042871 is about 320.8922720902.

The spelling of 33042871 in words is "thirty-three million, forty-two thousand, eight hundred seventy-one".