850217941 has 2 divisors, whose sum is σ = 850217942. Its totient is φ = 850217940.

The previous prime is 850217917. The next prime is 850217993. The reversal of 850217941 is 149712058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 673194916 + 177023025 = 25946^2 + 13305^2 .

It is a cyclic number.

It is not a de Polignac number, because 850217941 - 2¹⁵ = 850185173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 850217941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (850217341) 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, 425108970 + 425108971.

It is an arithmetic number, because the mean of its divisors is an integer number (425108971).

Almost surely, 2^850217941 is an apocalyptic number.

It is an amenable number.

850217941 is a deficient number, since it is larger than the sum of its proper divisors (1).

850217941 is an equidigital number, since it uses as much as digits as its factorization.

850217941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 850217941 is about 29158.4968919867. The cubic root of 850217941 is about 947.3491904976.

Adding to 850217941 its reverse (149712058), we get a palindrome (999929999).

It can be divided in two parts, 850217 and 941, that added together give a palindrome (851158).

The spelling of 850217941 in words is "eight hundred fifty million, two hundred seventeen thousand, nine hundred forty-one".