223405684 has 6 divisors (see below), whose sum is σ = 390959954. Its totient is φ = 111702840.

The previous prime is 223405649. The next prime is 223405691. The reversal of 223405684 is 486504322.

223405684 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., 222666084 + 739600 = 14922^2 + 860^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27925707 + ... + 27925714.

Almost surely, 2^223405684 is an apocalyptic number.

It is an amenable number.

223405684 is a deficient number, since it is larger than the sum of its proper divisors (167554270).

223405684 is a wasteful number, since it uses less digits than its factorization.

223405684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55851425 (or 55851423 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 223405684 is about 14946.7616559575. The cubic root of 223405684 is about 606.7802075189.

The spelling of 223405684 in words is "two hundred twenty-three million, four hundred five thousand, six hundred eighty-four".