33020889 has 16 divisors (see below), whose sum is σ = 48414720. Its totient is φ = 19852560.

The previous prime is 33020881. The next prime is 33020899. The reversal of 33020889 is 98802033.

It is not a de Polignac number, because 33020889 - 2³ = 33020881 is a prime.

It is a super-2 number, since 2×33020889² = 2180758220700642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (33020881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252 + ... + 8130.

It is an arithmetic number, because the mean of its divisors is an integer number (3025920).

Almost surely, 2^33020889 is an apocalyptic number.

It is an amenable number.

33020889 is a deficient number, since it is larger than the sum of its proper divisors (15393831).

33020889 is a wasteful number, since it uses less digits than its factorization.

33020889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 33020889 is about 5746.3805129838. The cubic root of 33020889 is about 320.8210976987.

The spelling of 33020889 in words is "thirty-three million, twenty thousand, eight hundred eighty-nine".