396312223 has 2 divisors, whose sum is σ = 396312224. Its totient is φ = 396312222.

The previous prime is 396312199. The next prime is 396312233. The reversal of 396312223 is 322213693.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396312223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396312233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198156111 + 198156112.

It is an arithmetic number, because the mean of its divisors is an integer number (198156112).

Almost surely, 2^396312223 is an apocalyptic number.

396312223 is a deficient number, since it is larger than the sum of its proper divisors (1).

396312223 is an equidigital number, since it uses as much as digits as its factorization.

396312223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 31.

The square root of 396312223 is about 19907.5920944749. The cubic root of 396312223 is about 734.5349908561.

The spelling of 396312223 in words is "three hundred ninety-six million, three hundred twelve thousand, two hundred twenty-three".