223687764 has 48 divisors (see below), whose sum is σ = 583186240. Its totient is φ = 74144160.

The previous prime is 223687747. The next prime is 223687771. The reversal of 223687764 is 467786322.

223687764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13827 + ... + 25269.

Almost surely, 2^223687764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223687764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291593120).

223687764 is an abundant number, since it is smaller than the sum of its proper divisors (359498476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223687764 is a wasteful number, since it uses less digits than its factorization.

223687764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11637 (or 11629 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 223687764 is about 14956.1948369229. The cubic root of 223687764 is about 607.0354809010.

It can be divided in two parts, 2236 and 87764, that added together give a square (90000 = 300²).

The spelling of 223687764 in words is "two hundred twenty-three million, six hundred eighty-seven thousand, seven hundred sixty-four".