33349921 has 8 divisors (see below), whose sum is σ = 38296800. Its totient is φ = 28722240.

The previous prime is 33349919. The next prime is 33349951. The reversal of 33349921 is 12994333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33349921 - 2¹ = 33349919 is a prime.

It is a super-2 number, since 2×33349921² = 2224434461412482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33349951) 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 7 ways as a sum of consecutive naturals, for example, 79576 + ... + 79993.

It is an arithmetic number, because the mean of its divisors is an integer number (4787100).

Almost surely, 2^33349921 is an apocalyptic number.

It is an amenable number.

33349921 is a deficient number, since it is larger than the sum of its proper divisors (4946879).

33349921 is a wasteful number, since it uses less digits than its factorization.

33349921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159599.

The product of its digits is 17496, while the sum is 34.

The square root of 33349921 is about 5774.9390472974. The cubic root of 33349921 is about 321.8831700694.

The spelling of 33349921 in words is "thirty-three million, three hundred forty-nine thousand, nine hundred twenty-one".