396800057 has 2 divisors, whose sum is σ = 396800058. Its totient is φ = 396800056.

The previous prime is 396800051. The next prime is 396800083. The reversal of 396800057 is 750008693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360088576 + 36711481 = 18976^2 + 6059^2 .

It is a cyclic number.

It is not a de Polignac number, because 396800057 - 2¹⁸ = 396537913 is a prime.

It is not a weakly prime, because it can be changed into another prime (396800051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198400028 + 198400029.

It is an arithmetic number, because the mean of its divisors is an integer number (198400029).

Almost surely, 2^396800057 is an apocalyptic number.

It is an amenable number.

396800057 is a deficient number, since it is larger than the sum of its proper divisors (1).

396800057 is an equidigital number, since it uses as much as digits as its factorization.

396800057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 396800057 is about 19919.8407875164. The cubic root of 396800057 is about 734.8362551919.

The spelling of 396800057 in words is "three hundred ninety-six million, eight hundred thousand, fifty-seven".