33986109 has 8 divisors (see below), whose sum is σ = 45403552. Its totient is φ = 22613040.

The previous prime is 33986101. The next prime is 33986129. The reversal of 33986109 is 90168933.

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

It is not a de Polignac number, because 33986109 - 2³ = 33986101 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 (33986101) 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, 9262 + ... + 12399.

It is an arithmetic number, because the mean of its divisors is an integer number (5675444).

Almost surely, 2^33986109 is an apocalyptic number.

It is an amenable number.

33986109 is a deficient number, since it is larger than the sum of its proper divisors (11417443).

33986109 is a wasteful number, since it uses less digits than its factorization.

33986109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22187.

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

The square root of 33986109 is about 5829.7606297343. The cubic root of 33986109 is about 323.9170550518.

The spelling of 33986109 in words is "thirty-three million, nine hundred eighty-six thousand, one hundred nine".