220983393 has 16 divisors (see below), whose sum is σ = 305282880. Its totient is φ = 142019136.

The previous prime is 220983361. The next prime is 220983401. The reversal of 220983393 is 393389022.

220983393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220983393 - 2⁵ = 220983361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220983193) 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, 67746 + ... + 70932.

It is an arithmetic number, because the mean of its divisors is an integer number (19080180).

Almost surely, 2^220983393 is an apocalyptic number.

It is an amenable number.

220983393 is a deficient number, since it is larger than the sum of its proper divisors (84299487).

220983393 is a wasteful number, since it uses less digits than its factorization.

220983393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 220983393 is about 14865.5101829705. The cubic root of 220983393 is about 604.5792151819.

The spelling of 220983393 in words is "two hundred twenty million, nine hundred eighty-three thousand, three hundred ninety-three".