853850447 has 2 divisors, whose sum is σ = 853850448. Its totient is φ = 853850446.

The previous prime is 853850341. The next prime is 853850467. The reversal of 853850447 is 744058358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853850447 - 2¹⁸ = 853588303 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 853850398 and 853850407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853850467) 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, 426925223 + 426925224.

It is an arithmetic number, because the mean of its divisors is an integer number (426925224).

Almost surely, 2^853850447 is an apocalyptic number.

853850447 is a deficient number, since it is larger than the sum of its proper divisors (1).

853850447 is an equidigital number, since it uses as much as digits as its factorization.

853850447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 853850447 is about 29220.7194812174. The cubic root of 853850447 is about 948.6964381480.

It can be divided in two parts, 8538 and 50447, that added together give a palindrome (58985).

The spelling of 853850447 in words is "eight hundred fifty-three million, eight hundred fifty thousand, four hundred forty-seven".