33881087 has 4 divisors (see below), whose sum is σ = 33914376. Its totient is φ = 33847800.

The previous prime is 33881069. The next prime is 33881101. The reversal of 33881087 is 78018833.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33881087 - 2¹⁴ = 33864703 is a prime.

It is a super-2 number, since 2×33881087² = 2295856112603138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33881087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33881027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15068 + ... + 17169.

It is an arithmetic number, because the mean of its divisors is an integer number (8478594).

Almost surely, 2^33881087 is an apocalyptic number.

33881087 is a deficient number, since it is larger than the sum of its proper divisors (33289).

33881087 is a wasteful number, since it uses less digits than its factorization.

33881087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33288.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 33881087 is about 5820.7462579982. The cubic root of 33881087 is about 323.5830605773.

The spelling of 33881087 in words is "thirty-three million, eight hundred eighty-one thousand, eighty-seven".