223163604 has 18 divisors (see below), whose sum is σ = 564108090. Its totient is φ = 74387856.

The previous prime is 223163597. The next prime is 223163617. The reversal of 223163604 is 406361322.

223163604 is a `hidden beast` number, since 2 + 23 + 1 + 636 + 0 + 4 = 666.

223163604 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., 197458704 + 25704900 = 14052^2 + 5070^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×223163604³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3099459 + ... + 3099530.

Almost surely, 2^223163604 is an apocalyptic number.

It is an amenable number.

223163604 is an abundant number, since it is smaller than the sum of its proper divisors (340944486).

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

223163604 is a wasteful number, since it uses less digits than its factorization.

223163604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198999 (or 6198994 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 223163604 is about 14938.6613858137. The cubic root of 223163604 is about 606.5609614701.

The spelling of 223163604 in words is "two hundred twenty-three million, one hundred sixty-three thousand, six hundred four".