33689012 has 12 divisors (see below), whose sum is σ = 67378080. Its totient is φ = 14438136.

The previous prime is 33689011. The next prime is 33689041. The reversal of 33689012 is 21098633.

33689012 is an admirable number.

It is a super-2 number, since 2×33689012² = 2269899059072288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 33689012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33689011) 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, 601562 + ... + 601617.

It is an arithmetic number, because the mean of its divisors is an integer number (5614840).

Almost surely, 2^33689012 is an apocalyptic number.

It is an amenable number.

33689012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33689012 is a wasteful number, since it uses less digits than its factorization.

33689012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203190 (or 1203188 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 33689012 is about 5804.2236345613. The cubic root of 33689012 is about 322.9704273743.

It can be divided in two parts, 33 and 689012, that multiplied together give a triangular number (22737396 = T₆₇₄₃).

The spelling of 33689012 in words is "thirty-three million, six hundred eighty-nine thousand, twelve".