33013223 has 16 divisors (see below), whose sum is σ = 35614080. Its totient is φ = 30541056.

The previous prime is 33013217. The next prime is 33013247. The reversal of 33013223 is 32231033.

It is a cyclic number.

It is not a de Polignac number, because 33013223 - 2¹² = 33009127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33013283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72011 + ... + 72467.

It is an arithmetic number, because the mean of its divisors is an integer number (2225880).

Almost surely, 2^33013223 is an apocalyptic number.

33013223 is a deficient number, since it is larger than the sum of its proper divisors (2600857).

33013223 is a wasteful number, since it uses less digits than its factorization.

33013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 33013223 is about 5745.7134456915. The cubic root of 33013223 is about 320.7962689216.

Adding to 33013223 its reverse (32231033), we get a palindrome (65244256).

The spelling of 33013223 in words is "thirty-three million, thirteen thousand, two hundred twenty-three".