855938827 has 2 divisors, whose sum is σ = 855938828. Its totient is φ = 855938826.

The previous prime is 855938821. The next prime is 855938879. The reversal of 855938827 is 728839558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855938827 - 2¹⁵ = 855906059 is a prime.

It is a super-2 number, since 2×855938827² = 1465262551132271858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (855938821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427969413 + 427969414.

It is an arithmetic number, because the mean of its divisors is an integer number (427969414).

Almost surely, 2^855938827 is an apocalyptic number.

855938827 is a deficient number, since it is larger than the sum of its proper divisors (1).

855938827 is an equidigital number, since it uses as much as digits as its factorization.

855938827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 55.

The square root of 855938827 is about 29256.4322329296. The cubic root of 855938827 is about 949.4692610713.

The spelling of 855938827 in words is "eight hundred fifty-five million, nine hundred thirty-eight thousand, eight hundred twenty-seven".