33993912 has 32 divisors (see below), whose sum is σ = 86428800. Its totient is φ = 11138784.

The previous prime is 33993901. The next prime is 33993913. The reversal of 33993912 is 21939933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33993913) 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, 10588 + ... + 13419.

It is an arithmetic number, because the mean of its divisors is an integer number (2700900).

Almost surely, 2^33993912 is an apocalyptic number.

It is an amenable number.

33993912 is an abundant number, since it is smaller than the sum of its proper divisors (52434888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33993912 is a wasteful number, since it uses less digits than its factorization.

33993912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24075 (or 24071 counting only the distinct ones).

The product of its digits is 39366, while the sum is 39.

The square root of 33993912 is about 5830.4298297810. The cubic root of 33993912 is about 323.9418429376.

The spelling of 33993912 in words is "thirty-three million, nine hundred ninety-three thousand, nine hundred twelve".