33067985 has 4 divisors (see below), whose sum is σ = 39681588. Its totient is φ = 26454384.

The previous prime is 33067967. The next prime is 33067987. The reversal of 33067985 is 58976033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58976033 = 541 ⋅109013.

It can be written as a sum of positive squares in 2 ways, for example, as 24611521 + 8456464 = 4961^2 + 2908^2 .

It is a cyclic number.

It is not a de Polignac number, because 33067985 - 2⁶ = 33067921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33067987) 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, 3306794 + ... + 3306803.

It is an arithmetic number, because the mean of its divisors is an integer number (9920397).

Almost surely, 2^33067985 is an apocalyptic number.

It is an amenable number.

33067985 is a deficient number, since it is larger than the sum of its proper divisors (6613603).

33067985 is an equidigital number, since it uses as much as digits as its factorization.

33067985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6613602.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 33067985 is about 5750.4769367419. The cubic root of 33067985 is about 320.9735488017.

The spelling of 33067985 in words is "thirty-three million, sixty-seven thousand, nine hundred eighty-five".