33706812 has 12 divisors (see below), whose sum is σ = 78649256. Its totient is φ = 11235600.

The previous prime is 33706811. The next prime is 33706837. The reversal of 33706812 is 21860733.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33706812² = 2272298350406688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33706812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33706811) 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, 1404439 + ... + 1404462.

Almost surely, 2^33706812 is an apocalyptic number.

It is an amenable number.

33706812 is an abundant number, since it is smaller than the sum of its proper divisors (44942444).

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

33706812 is a wasteful number, since it uses less digits than its factorization.

33706812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808908 (or 2808906 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 33706812 is about 5805.7567982133. The cubic root of 33706812 is about 323.0272991461.

The spelling of 33706812 in words is "thirty-three million, seven hundred six thousand, eight hundred twelve".