33223109 has 4 divisors (see below), whose sum is σ = 34667616. Its totient is φ = 31778604.

The previous prime is 33223097. The next prime is 33223111. The reversal of 33223109 is 90132233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33223109 - 2⁸ = 33222853 is a prime.

It is a super-2 number, since 2×33223109² = 2207549943251762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1444483 = 33223109 / (3 + 3 + 2 + 2 + 3 + 1 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722219 + ... + 722264.

It is an arithmetic number, because the mean of its divisors is an integer number (8666904).

Almost surely, 2^33223109 is an apocalyptic number.

It is an amenable number.

33223109 is a deficient number, since it is larger than the sum of its proper divisors (1444507).

33223109 is a wasteful number, since it uses less digits than its factorization.

33223109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444506.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 33223109 is about 5763.9490802747. The cubic root of 33223109 is about 321.4746683988.

The spelling of 33223109 in words is "thirty-three million, two hundred twenty-three thousand, one hundred nine".