855260971 has 2 divisors, whose sum is σ = 855260972. Its totient is φ = 855260970.

The previous prime is 855260969. The next prime is 855261059. The reversal of 855260971 is 179062558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855260971 - 2¹ = 855260969 is a prime.

Together with 855260969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (855260071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427630485 + 427630486.

It is an arithmetic number, because the mean of its divisors is an integer number (427630486).

Almost surely, 2^855260971 is an apocalyptic number.

855260971 is a deficient number, since it is larger than the sum of its proper divisors (1).

855260971 is an equidigital number, since it uses as much as digits as its factorization.

855260971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 855260971 is about 29244.8452038988. The cubic root of 855260971 is about 949.2185525747.

The spelling of 855260971 in words is "eight hundred fifty-five million, two hundred sixty thousand, nine hundred seventy-one".