854788447 has 2 divisors, whose sum is σ = 854788448. Its totient is φ = 854788446.

The previous prime is 854788343. The next prime is 854788469. The reversal of 854788447 is 744887458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854788447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854788147) 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, 427394223 + 427394224.

It is an arithmetic number, because the mean of its divisors is an integer number (427394224).

Almost surely, 2^854788447 is an apocalyptic number.

854788447 is a deficient number, since it is larger than the sum of its proper divisors (1).

854788447 is an equidigital number, since it uses as much as digits as its factorization.

854788447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8028160, while the sum is 55.

The square root of 854788447 is about 29236.7653306586. The cubic root of 854788447 is about 949.0437087977.

The spelling of 854788447 in words is "eight hundred fifty-four million, seven hundred eighty-eight thousand, four hundred forty-seven".