20333933 has 4 divisors (see below), whose sum is σ = 21404160. Its totient is φ = 19263708.

The previous prime is 20333899. The next prime is 20333941. The reversal of 20333933 is 33933302.

It is a happy number.

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 20333933 - 2¹⁶ = 20268397 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 (20333953) 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 3 ways as a sum of consecutive naturals, for example, 535085 + ... + 535122.

It is an arithmetic number, because the mean of its divisors is an integer number (5351040).

Almost surely, 2^20333933 is an apocalyptic number.

It is an amenable number.

20333933 is a deficient number, since it is larger than the sum of its proper divisors (1070227).

20333933 is a wasteful number, since it uses less digits than its factorization.

20333933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070226.

The product of its (nonzero) digits is 4374, while the sum is 26.

The square root of 20333933 is about 4509.3162452860. The cubic root of 20333933 is about 272.9441534877.

The spelling of 20333933 in words is "twenty million, three hundred thirty-three thousand, nine hundred thirty-three".