223783816 has 8 divisors (see below), whose sum is σ = 419594670. Its totient is φ = 111891904.

The previous prime is 223783811. The next prime is 223783817. The reversal of 223783816 is 618387322.

223783816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 200222500 + 23561316 = 14150^2 + 4854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (223783811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13986481 + ... + 13986496.

Almost surely, 2^223783816 is an apocalyptic number.

It is an amenable number.

223783816 is a deficient number, since it is larger than the sum of its proper divisors (195810854).

223783816 is a wasteful number, since it uses less digits than its factorization.

223783816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27972983 (or 27972979 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 223783816 is about 14959.4056031649. The cubic root of 223783816 is about 607.1223559082.

The spelling of 223783816 in words is "two hundred twenty-three million, seven hundred eighty-three thousand, eight hundred sixteen".