393204223 has 2 divisors, whose sum is σ = 393204224. Its totient is φ = 393204222.

The previous prime is 393204187. The next prime is 393204239. The reversal of 393204223 is 322402393.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393204223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 393204191 and 393204200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (393204263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196602111 + 196602112.

It is an arithmetic number, because the mean of its divisors is an integer number (196602112).

Almost surely, 2^393204223 is an apocalyptic number.

393204223 is a deficient number, since it is larger than the sum of its proper divisors (1).

393204223 is an equidigital number, since it uses as much as digits as its factorization.

393204223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 393204223 is about 19829.3777764205. The cubic root of 393204223 is about 732.6098010880.

The spelling of 393204223 in words is "three hundred ninety-three million, two hundred four thousand, two hundred twenty-three".