33961081 has 8 divisors (see below), whose sum is σ = 42341184. Its totient is φ = 26463120.

The previous prime is 33961009. The next prime is 33961093. The reversal of 33961081 is 18016933.

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

It is a cyclic number.

It is not a de Polignac number, because 33961081 - 2¹³ = 33952889 is a prime.

It is a super-2 number, since 2×33961081² = 2306710045377122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33965081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220450 + ... + 220603.

It is an arithmetic number, because the mean of its divisors is an integer number (5292648).

Almost surely, 2^33961081 is an apocalyptic number.

It is an amenable number.

33961081 is a deficient number, since it is larger than the sum of its proper divisors (8380103).

33961081 is a wasteful number, since it uses less digits than its factorization.

33961081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441071.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 33961081 is about 5827.6136625552. The cubic root of 33961081 is about 323.8375226864.

The spelling of 33961081 in words is "thirty-three million, nine hundred sixty-one thousand, eighty-one".