396366811 has 2 divisors, whose sum is σ = 396366812. Its totient is φ = 396366810.

The previous prime is 396366799. The next prime is 396366821. The reversal of 396366811 is 118663693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396366811 - 2⁷ = 396366683 is a prime.

It is not a weakly prime, because it can be changed into another prime (396366821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198183405 + 198183406.

It is an arithmetic number, because the mean of its divisors is an integer number (198183406).

Almost surely, 2^396366811 is an apocalyptic number.

396366811 is a deficient number, since it is larger than the sum of its proper divisors (1).

396366811 is an equidigital number, since it uses as much as digits as its factorization.

396366811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 396366811 is about 19908.9630819890. The cubic root of 396366811 is about 734.5687142295.

The spelling of 396366811 in words is "three hundred ninety-six million, three hundred sixty-six thousand, eight hundred eleven".