33989016 has 16 divisors (see below), whose sum is σ = 84972600. Its totient is φ = 11329664.

The previous prime is 33989003. The next prime is 33989027. The reversal of 33989016 is 61098933.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708081 + ... + 708128.

Almost surely, 2^33989016 is an apocalyptic number.

It is an amenable number.

33989016 is an abundant number, since it is smaller than the sum of its proper divisors (50983584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33989016 is a wasteful number, since it uses less digits than its factorization.

33989016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416218 (or 1416214 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 33989016 is about 5830.0099485335. The cubic root of 33989016 is about 323.9262901977.

The spelling of 33989016 in words is "thirty-three million, nine hundred eighty-nine thousand, sixteen".