33855009 has 8 divisors (see below), whose sum is σ = 45428160. Its totient is φ = 22425936.

The previous prime is 33854987. The next prime is 33855013. The reversal of 33855009 is 90055833.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33855009 - 2¹⁵ = 33822241 is a prime.

It is a super-2 number, since 2×33855009² = 2292323268780162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33855079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35469 + ... + 36410.

It is an arithmetic number, because the mean of its divisors is an integer number (5678520).

Almost surely, 2^33855009 is an apocalyptic number.

It is an amenable number.

33855009 is a deficient number, since it is larger than the sum of its proper divisors (11573151).

33855009 is a wasteful number, since it uses less digits than its factorization.

33855009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72039.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 33855009 is about 5818.5057360116. The cubic root of 33855009 is about 323.5000195091.

The spelling of 33855009 in words is "thirty-three million, eight hundred fifty-five thousand, nine".