396545663 has 2 divisors, whose sum is σ = 396545664. Its totient is φ = 396545662.

The previous prime is 396545657. The next prime is 396545671. The reversal of 396545663 is 366545693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396545663 - 2¹⁴ = 396529279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396545683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198272831 + 198272832.

It is an arithmetic number, because the mean of its divisors is an integer number (198272832).

Almost surely, 2^396545663 is an apocalyptic number.

396545663 is a deficient number, since it is larger than the sum of its proper divisors (1).

396545663 is an equidigital number, since it uses as much as digits as its factorization.

396545663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1749600, while the sum is 47.

The square root of 396545663 is about 19913.4543211368. The cubic root of 396545663 is about 734.6791837275.

The spelling of 396545663 in words is "three hundred ninety-six million, five hundred forty-five thousand, six hundred sixty-three".