855328547 has 2 divisors, whose sum is σ = 855328548. Its totient is φ = 855328546.

The previous prime is 855328501. The next prime is 855328549. The reversal of 855328547 is 745823558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 855328547 - 2¹⁴ = 855312163 is a prime.

Together with 855328549, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (855328549) 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, 427664273 + 427664274.

It is an arithmetic number, because the mean of its divisors is an integer number (427664274).

Almost surely, 2^855328547 is an apocalyptic number.

855328547 is a deficient number, since it is larger than the sum of its proper divisors (1).

855328547 is an equidigital number, since it uses as much as digits as its factorization.

855328547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344000, while the sum is 47.

The square root of 855328547 is about 29246.0005299870. Note that the first 3 decimals coincide. The cubic root of 855328547 is about 949.2435518462.

The spelling of 855328547 in words is "eight hundred fifty-five million, three hundred twenty-eight thousand, five hundred forty-seven".