396420223 has 2 divisors, whose sum is σ = 396420224. Its totient is φ = 396420222.

The previous prime is 396420217. The next prime is 396420239. The reversal of 396420223 is 322024693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396420223 - 2¹³ = 396412031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396420293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198210111 + 198210112.

It is an arithmetic number, because the mean of its divisors is an integer number (198210112).

Almost surely, 2^396420223 is an apocalyptic number.

396420223 is a deficient number, since it is larger than the sum of its proper divisors (1).

396420223 is an equidigital number, since it uses as much as digits as its factorization.

396420223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 396420223 is about 19910.3044426749. The cubic root of 396420223 is about 734.6017080968.

The spelling of 396420223 in words is "three hundred ninety-six million, four hundred twenty thousand, two hundred twenty-three".