223556693 has 2 divisors, whose sum is σ = 223556694. Its totient is φ = 223556692.

The previous prime is 223556657. The next prime is 223556713. The reversal of 223556693 is 396655322.

223556693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184905604 + 38651089 = 13598^2 + 6217^2 .

It is a cyclic number.

It is not a de Polignac number, because 223556693 - 2⁶ = 223556629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223556693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223556623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111778346 + 111778347.

It is an arithmetic number, because the mean of its divisors is an integer number (111778347).

Almost surely, 2^223556693 is an apocalyptic number.

It is an amenable number.

223556693 is a deficient number, since it is larger than the sum of its proper divisors (1).

223556693 is an equidigital number, since it uses as much as digits as its factorization.

223556693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 41.

The square root of 223556693 is about 14951.8123650613. The cubic root of 223556693 is about 606.9168925443.

The spelling of 223556693 in words is "two hundred twenty-three million, five hundred fifty-six thousand, six hundred ninety-three".