33985247 has 4 divisors (see below), whose sum is σ = 34415520. Its totient is φ = 33554976.

The previous prime is 33985241. The next prime is 33985249. The reversal of 33985247 is 74258933.

33985247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33985247 - 2¹⁸ = 33723103 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 (33985241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215018 + ... + 215175.

It is an arithmetic number, because the mean of its divisors is an integer number (8603880).

Almost surely, 2^33985247 is an apocalyptic number.

33985247 is a deficient number, since it is larger than the sum of its proper divisors (430273).

33985247 is an equidigital number, since it uses as much as digits as its factorization.

33985247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430272.

The product of its digits is 181440, while the sum is 41.

The square root of 33985247 is about 5829.6866982712. The cubic root of 33985247 is about 323.9143164931.

The spelling of 33985247 in words is "thirty-three million, nine hundred eighty-five thousand, two hundred forty-seven".