394785359 has 2 divisors, whose sum is σ = 394785360. Its totient is φ = 394785358.

The previous prime is 394785331. The next prime is 394785389. The reversal of 394785359 is 953587493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 394785359 - 2²⁴ = 378008143 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 394785359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394785319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197392679 + 197392680.

It is an arithmetic number, because the mean of its divisors is an integer number (197392680).

Almost surely, 2^394785359 is an apocalyptic number.

394785359 is a deficient number, since it is larger than the sum of its proper divisors (1).

394785359 is an equidigital number, since it uses as much as digits as its factorization.

394785359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4082400, while the sum is 53.

The square root of 394785359 is about 19869.2063002023. The cubic root of 394785359 is about 733.5904675191.

The spelling of 394785359 in words is "three hundred ninety-four million, seven hundred eighty-five thousand, three hundred fifty-nine".