396775307 has 2 divisors, whose sum is σ = 396775308. Its totient is φ = 396775306.

The previous prime is 396775297. The next prime is 396775321. The reversal of 396775307 is 703577693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396775307 - 2⁶ = 396775243 is a prime.

It is not a weakly prime, because it can be changed into another prime (396775387) 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, 198387653 + 198387654.

It is an arithmetic number, because the mean of its divisors is an integer number (198387654).

Almost surely, 2^396775307 is an apocalyptic number.

396775307 is a deficient number, since it is larger than the sum of its proper divisors (1).

396775307 is an equidigital number, since it uses as much as digits as its factorization.

396775307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 833490, while the sum is 47.

The square root of 396775307 is about 19919.2195379237. The cubic root of 396775307 is about 734.8209766529.

The spelling of 396775307 in words is "three hundred ninety-six million, seven hundred seventy-five thousand, three hundred seven".