855389366 has 64 divisors (see below), whose sum is σ = 1487299968. Its totient is φ = 365933568.

The previous prime is 855389363. The next prime is 855389383. The reversal of 855389366 is 663983558.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855389363) 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 in 31 ways as a sum of consecutive naturals, for example, 4341980 + ... + 4342176.

It is an arithmetic number, because the mean of its divisors is an integer number (23239062).

It is the magic constant of a 1196 × 1196 magic square.

Almost surely, 2^855389366 is an apocalyptic number.

855389366 is a deficient number, since it is larger than the sum of its proper divisors (631910602).

855389366 is a wasteful number, since it uses less digits than its factorization.

855389366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its digits is 4665600, while the sum is 53.

The square root of 855389366 is about 29247.0402947033. The cubic root of 855389366 is about 949.2660502867.

The spelling of 855389366 in words is "eight hundred fifty-five million, three hundred eighty-nine thousand, three hundred sixty-six".