33032989 has 12 divisors (see below), whose sum is σ = 38284128. Its totient is φ = 28260800.

The previous prime is 33032983. The next prime is 33032999. The reversal of 33032989 is 98923033.

It is not a de Polignac number, because 33032989 - 2²³ = 24644381 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 (33032983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2017 + ... + 8374.

It is an arithmetic number, because the mean of its divisors is an integer number (3190344).

Almost surely, 2^33032989 is an apocalyptic number.

It is an amenable number.

33032989 is a deficient number, since it is larger than the sum of its proper divisors (5251139).

33032989 is a wasteful number, since it uses less digits than its factorization.

33032989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10436 (or 10419 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 33032989 is about 5747.4332532009. The cubic root of 33032989 is about 320.8602795756.

The spelling of 33032989 in words is "thirty-three million, thirty-two thousand, nine hundred eighty-nine".