33223333 has 12 divisors (see below), whose sum is σ = 39329164. Its totient is φ = 27878400.

The previous prime is 33223331. The next prime is 33223349. The reversal of 33223333 is 33332233.

It can be written as a sum of positive squares in 2 ways, for example, as 14152644 + 19070689 = 3762^2 + 4367^2 .

It is not a de Polignac number, because 33223333 - 2¹ = 33223331 is a prime.

It is a super-2 number, since 2×33223333² = 2207579711257778, which contains 22 as substring.

It is a Duffinian number.

33223333 is a modest number, since divided by 3333 gives 3322 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8988 + ... + 12133.

Almost surely, 2^33223333 is an apocalyptic number.

It is an amenable number.

33223333 is a deficient number, since it is larger than the sum of its proper divisors (6105831).

33223333 is a wasteful number, since it uses less digits than its factorization.

33223333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21156 (or 21145 counting only the distinct ones).

The product of its digits is 2916, while the sum is 22.

The square root of 33223333 is about 5763.9685113644. The cubic root of 33223333 is about 321.4753908895.

Adding to 33223333 its reverse (33332233), we get a palindrome (66555566).

Subtracting 33223333 from its reverse (33332233), we obtain a square (108900 = 330²).

The spelling of 33223333 in words is "thirty-three million, two hundred twenty-three thousand, three hundred thirty-three".