33086881 has 4 divisors (see below), whose sum is σ = 33290032. Its totient is φ = 32883732.

The previous prime is 33086869. The next prime is 33086891. The reversal of 33086881 is 18868033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18868033 = 503 ⋅37511.

It is a cyclic number.

It is not a de Polignac number, because 33086881 - 2⁵ = 33086849 is a prime.

It is a super-2 number, since 2×33086881² = 2189483388616322, 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 33086881.

It is not an unprimeable number, because it can be changed into a prime (33086821) 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, 101331 + ... + 101656.

It is an arithmetic number, because the mean of its divisors is an integer number (8322508).

Almost surely, 2^33086881 is an apocalyptic number.

It is an amenable number.

33086881 is a deficient number, since it is larger than the sum of its proper divisors (203151).

33086881 is a wasteful number, since it uses less digits than its factorization.

33086881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203150.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 33086881 is about 5752.1196962511. The cubic root of 33086881 is about 321.0346750067.

The spelling of 33086881 in words is "thirty-three million, eighty-six thousand, eight hundred eighty-one".