855208267 has 2 divisors, whose sum is σ = 855208268. Its totient is φ = 855208266.

The previous prime is 855208261. The next prime is 855208313. The reversal of 855208267 is 762802558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855208267 - 2⁷ = 855208139 is a prime.

It is not a weakly prime, because it can be changed into another prime (855208261) 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, 427604133 + 427604134.

It is an arithmetic number, because the mean of its divisors is an integer number (427604134).

Almost surely, 2^855208267 is an apocalyptic number.

855208267 is a deficient number, since it is larger than the sum of its proper divisors (1).

855208267 is an equidigital number, since it uses as much as digits as its factorization.

855208267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 855208267 is about 29243.9441081397. The cubic root of 855208267 is about 949.1990541822.

The spelling of 855208267 in words is "eight hundred fifty-five million, two hundred eight thousand, two hundred sixty-seven".