33997912 has 16 divisors (see below), whose sum is σ = 68649840. Its totient is φ = 15691296.

The previous prime is 33997883. The next prime is 33997921. The reversal of 33997912 is 21979933.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163348 + ... + 163555.

It is an arithmetic number, because the mean of its divisors is an integer number (4290615).

Almost surely, 2^33997912 is an apocalyptic number.

It is an amenable number.

33997912 is an abundant number, since it is smaller than the sum of its proper divisors (34651928).

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

33997912 is a wasteful number, since it uses less digits than its factorization.

33997912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326922 (or 326918 counting only the distinct ones).

The product of its digits is 91854, while the sum is 43.

The square root of 33997912 is about 5830.7728475735. The cubic root of 33997912 is about 323.9545483161.

It can be divided in two parts, 3399 and 7912, that added together give a palindrome (11311).

The spelling of 33997912 in words is "thirty-three million, nine hundred ninety-seven thousand, nine hundred twelve".