855389363 has 2 divisors, whose sum is σ = 855389364. Its totient is φ = 855389362.

The previous prime is 855389341. The next prime is 855389383. The reversal of 855389363 is 363983558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 855389363 - 2¹⁴ = 855372979 is a prime.

It is not a weakly prime, because it can be changed into another prime (855389303) 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, 427694681 + 427694682.

It is an arithmetic number, because the mean of its divisors is an integer number (427694682).

Almost surely, 2^855389363 is an apocalyptic number.

855389363 is a deficient number, since it is larger than the sum of its proper divisors (1).

855389363 is an equidigital number, since it uses as much as digits as its factorization.

855389363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 50.

The square root of 855389363 is about 29247.0402434161. The cubic root of 855389363 is about 949.2660491769.

The spelling of 855389363 in words is "eight hundred fifty-five million, three hundred eighty-nine thousand, three hundred sixty-three".