1983564223 has 8 divisors (see below), whose sum is σ = 2098897920. Its totient is φ = 1869324120.

The previous prime is 1983564221. The next prime is 1983564259. The reversal of 1983564223 is 3224653891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1983564223 - 2¹ = 1983564221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1983564223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983564221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269665 + ... + 276922.

It is an arithmetic number, because the mean of its divisors is an integer number (262362240).

Almost surely, 2^1983564223 is an apocalyptic number.

1983564223 is a deficient number, since it is larger than the sum of its proper divisors (115333697).

1983564223 is a wasteful number, since it uses less digits than its factorization.

1983564223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546797.

The product of its digits is 311040, while the sum is 43.

The square root of 1983564223 is about 44537.2228927669. Note that the first 3 decimals coincide. The cubic root of 1983564223 is about 1256.4602554676.

The spelling of 1983564223 in words is "one billion, nine hundred eighty-three million, five hundred sixty-four thousand, two hundred twenty-three".