396209027 has 2 divisors, whose sum is σ = 396209028. Its totient is φ = 396209026.

The previous prime is 396208979. The next prime is 396209041. The reversal of 396209027 is 720902693.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396209027 is a prime.

It is not a weakly prime, because it can be changed into another prime (396209087) 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, 198104513 + 198104514.

It is an arithmetic number, because the mean of its divisors is an integer number (198104514).

Almost surely, 2^396209027 is an apocalyptic number.

396209027 is a deficient number, since it is larger than the sum of its proper divisors (1).

396209027 is an equidigital number, since it uses as much as digits as its factorization.

396209027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 396209027 is about 19905.0000502386. Note that the first 4 decimals coincide. The cubic root of 396209027 is about 734.4712299720.

The spelling of 396209027 in words is "three hundred ninety-six million, two hundred nine thousand, twenty-seven".