33985118 has 4 divisors (see below), whose sum is σ = 50977680. Its totient is φ = 16992558.

The previous prime is 33985111. The next prime is 33985139. The reversal of 33985118 is 81158933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81158933 = 641 ⋅126613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33985111) 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 as a sum of consecutive naturals, namely, 8496278 + ... + 8496281.

It is an arithmetic number, because the mean of its divisors is an integer number (12744420).

Almost surely, 2^33985118 is an apocalyptic number.

33985118 is a deficient number, since it is larger than the sum of its proper divisors (16992562).

33985118 is a wasteful number, since it uses less digits than its factorization.

33985118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16992561.

The product of its digits is 25920, while the sum is 38.

The square root of 33985118 is about 5829.6756342013. The cubic root of 33985118 is about 323.9139066584.

The spelling of 33985118 in words is "thirty-three million, nine hundred eighty-five thousand, one hundred eighteen".